That Guy:
No argument if you want to put Gonzales in there and take Vernon Davis out. The point I was trying to make is the while Cooley is a VERY good tight end, he's not the best tight end in the NFL and in fact he may not be better than sixth or seventh at that position.
So, if you are picking a 50 man roster of the best players in the league, it might be hard to put six or seven tight ends on the squad.
One could find a similar situation at quarterback. You are picking the best available squad and you will stock it with three QBs. OK, so you decide to put Brady and P. Manning on the squad. Now, who is #3?
Carson Palmer? Ben Roethlisberger? E. Manning? Donovan McNabb? Brett Favre? (I think he's coming back.) Patrick Ramsey (Just seeing if you are paying attention here...
If you could only pick one of them, you'd leave some pretty good QBs off the squad.