For a multitude of reasons, many players who have very productive college careers fail to match that level of production in the NFL.
In some cases, a player's failure to succeed in the NFL can be a result of lacking motivation, injury issues or simply ending up with a team that isn't the right fit. In other cases, however, a player's skill set or measurables simply do not translate to next-level success.
The following 10 players fall toward the latter. While all 10 of these players had great collegiate careers, chances are each of them will fall outside the 254 draft selections later this week because their games are not as well suited for the NFL as they are for collegiate production.
That’s not to say that these 10 players can’t be successful NFL players—many undrafted free-agent signees end up making 53-man rosters each year—but they will have more of an uphill battle than the players selected in the draft.
All workout numbers are from the 2013 NFL Scouting Combine and found via NFL.com unless otherwise noted.