Looking at the team as a whole there are numerous reasons why Marshall is not only unnecessary but potentially more harmful than helpful. First and foremost is his previous legal and behavioral problems.
When the Giants decided to part ways with Plaxico Buress, before his case was either tried or settled, they were making the conscious decision to rid themselves of a player who had been causing them problems off the field. Regardless of his tremendous performance on it, they had no use for a guy who was reportedly a headache off it.
Marshall's legal problems make Buress look like Amani Toomer. Marshall has been accused of seven separate counts of domestic abuse. That is violence against a woman and a repeat offender at that. Seven counts is not a mistake, its a pattern. The Giants simply cannot turn their back on a Super Bowl hero because of his off the field behavior only to sign a guy who brings even more baggage with him.
Obviously the team suffered after the bullet entered Buress' leg, but looking at the roster its easy to see why. Domenik Hixon and Steve Smith were both in their first full seasons playing WR in the NFL. They were rookies, and we all know how rookie WRs struggle since that idea has been hammered home ad nauseum for the past 4 months. As far as rookies go, Smith and Hixon did an impressive job.
Behind them are Sinorice Moss and Mario Manningham, the two stars of mini-camp this season. Mini-camp is not training camp and certainly not the NFL season, but the skills these players are showing are not coming out of nowhere. This is the type of ability that both players showed in college that allowed them to become highly regarded draft picks.
"Mario Manningham, the jury is still out, but we think he has a lot of talent and we like him a lot. Sinorice Moss really hasn't had a lot of chances here, but when he got in games...last year he had 12 catches, two touchdowns, no missed assignments and no drops. But he doesn't get many opportunities. So now he'll get some opportunities and we'll see what he can do," GM Jerry Reese said.
Moss has had trouble staying healthy, but when on the field has always been impressive. Manningham was also injured in camp last season, and never fully caught up. This season they are both poised to make an impact on the passing game and they had better be because if they don't there are two rookies who are chomping at the bit to do just that
So apparently rookie WRs rarely contribute in their first season in the NFL. It's a good thing nobody told Anquan Boldin, Marques Colston, Eddie Royal or DeSean Jackson that. The truth is that Hakeem Nicks came from a pro style offense. They run similar patterns and have similar reads to what the Giants are going to be doing. As far as learning curves go, his will be easier than most.
Ramses Barden will have a long way to go to prove he belongs on the field every down, but one thing he does have going for him is size. You can't teach a guy to be 6'6". Barden will rarely get time with the guys in front of him, but when he does it will be in the red zone. To anticipate a few jump ball touchdowns would be both fair and accurate.
The bottom line is that making a trade at this stage of the game would be over kill. If the Giants felt desperate about the position, they could have had Braylon Edwards for a very reasonable deal. They chose to go with the guys they had and to take the most NFL ready WR in the draft. They don't seem too worried about the position right now, and judging from Reese's previous track record he's earned the benefit of the doubt.