Buccaneers' Overhaul Does Not End with Trades of Barron, Casillas

Abandon ship.

The overhaul of the Tampa Bay Buccaneers has just started. 

As the NFL's trade deadline came and went Tuesday, the Buccaneers were the only team willing to make a deal. The organization agreed to a pair of trades before the 4 p.m. ET cutoff, but it was listening to other offers which should indicate further change in the team's future. 

Fifth-year linebacker Jonathan Casillas was traded to the New England Patriots by swapping late-round draft picks, according to ESPN's Adam Schefter, while former top-10 pick Mark Barron was sent packing to the St. Louis Rams for a pair of third-day draft picks. 

After making the deals, Buccaneers general manager Jason Licht thanked both players for their time in Tampa Bay. 

"We have a lot of respect for Jonathan and Mark as players," Licht told The Tampa Tribune's Ira Kaufman. "We appreciate their hard work and what they did for us here. We wish them nothing but the best. They’ve been great program guys here for Lovie (Smith) and myself."

However, the actual message Licht and Company sent was crystal clear, as SiriusXM NFL Radio's Ross Tucker tweeted:

The Buccaneers will almost certainly make more moves of this caliber between now and next season. 

Prior to the Tuesday's trade deadline, the Buccaneers used certain channels to let the entire league know multiple players were available.

Rick Stroud of the Tampa Bay Times floated two particular names that were available: 

Obviously, Barron was traded. But Martin wasn't.

The team's eventual plans for Martin should become apparent in the coming weeks. The running back will likely receive a diminished role during the second half of the season.

Martin has dealt with injuries both last season and during this year's campaign. It's part of the reason why the third-year running back is averaging a meager 2.9 yards per carry. 

Tampa Bay selected running back Charles Sims in the third round of this year's draft, and the team expects to give the rookie an expanded role now that he's been cleared to play after spending part of the season on injured reserve with a designation to return. 

The coaching staff is excited to have Sims back in the fold and ready to experiment with him in the offense, per Buccaneers senior editor Scott Smith: 

With Sims likely taking over as the team's top tailback at some point during the second half of the season, Martin will be relegated to rotational duties alongside Bobby Rainey.

Since Martin is the Buccaneers' top-paid running back with nearly a $2.2 million cap hit in 2015 and holds some interest around the league, he is more valuable to the Buccaneers as a trade asset than anything he contributes on the field at this point.

Wide receiver Vincent Jackson falls into the same category as Martin, albeit he is an older and more expensive option for interested teams. 

At 31 years old, Jackson was an intriguing possibility for a team trying to make a playoff run this season. The Buccaneers decided not to trade him, though. 

Just because a deal wasn't struck at the trade deadline doesn't mean Jackson will remain with the franchise long term. 

Jackson is due nearly $9.8 million each of the next two seasons. The Buccaneers' investment in the wide receiver drops dramatically after this season. If Tampa Bay decides to trade or even release Jackson prior to the 2015 campaign, the organization will save nearly $5 million. That number increases to over $7 million prior to the 2016 season. 

The team is already leaning toward making Mike Evans, who was selected with the seventh overall selection in this year's draft, an even bigger part of the offense. 

Evans received compliments from his offensive coordinator and quarterback Wednesday for his increasingly improved play, per Smith: 

Jackson can continue to help Evans grow as a wide receiver, but the veteran doesn't have much of a place on a rebuilding franchise after this season.

If head coach Lovie Smith and Licht are attempting to completely revamp the roster in their image, safety Dashon Goldson shouldn't feel secure either. 

Goldson is a more versatile and better all-around player than the recently traded Barron, but his contract is prohibitive after signing a five-year, $41.25 million contract in 2013. However, the Buccaneers could release Goldson and shave $4.5 million off next year's salary cap. 

Lovie Smith's Cover 2 scheme doesn't require highly paid safeties to get the job done. Goldson is talented, but he is currently considered a disappointment during his time in Tampa Bay. The team will need to make a decision on whether he fits in its plans moving forward. 

Unlike Jackson and Martin, the team doesn't currently have a better option to replace Goldson waiting in the wings. 

The organization also has decisions to make regarding multiple free agents after this season.

Defensive end Adrian Clayborn, cornerback Mike Jenkins, inside linebacker Mason Foster, defensive lineman Da'Quan Bowers, cornerback Leonard Johnson, outside linebacker Danny Lansanah, safety Major Wright and running back Bobby Rainey all started at some point this season or were expected to be major contributors. Each of them is free to test the market after this season. 

Tampa Bay's activity during the trade deadline was clearly the first step in building a completely new identity. Once the team started as poorly as it did, there was no reason to fool itself into thinking it could win with the roster as it was constructed. 

Licht is a disciple of New England Patriots head coach Bill Belichick. As such, the Buccaneers general manager will attempt to build an entirely new culture in Tampa Bay. That involves getting rid of those players who don't fit the team's ideals. 

The deals made to move Barron and Casillas were the first step of the organization's overarching change. Many more moves should be expected in the next six months. And the Buccaneers squad seen in 2014 should be vastly different than the one the franchise fields in 2015. 

All salary information obtained from Spotrac.com.

Brent Sobleski covers the NFC South for Bleacher Report. Follow him on Twitter.