Uh... Ok... Pace is really a Charles Haley in disguise. And Rolle? Yea - perhaps the next Gregg Lloyd or L.T. even??
82...you are way over-reacting here.
If a player has shown at one time he can be decent to good at one thing, there is reason to believe he can be again if put in the position to do so. Pace was making real progress at RDE before he was hurt and then moved to LB.
And, albeit unorthodox, teams have put players in hybrid type positions and gotten great mileage out of them. case in point, when Fritz Schurmer decided to use Pat Tillman as his MLB in his Jumbo defense, which he ran on a steady basis the second half of the year he did it. Pat Tillman was awesome in that role.
Also, getting back to coaching experience, all coaches are faced with the same issues regarding pass coverage. Football is football. The reality is it's very difficult to defend 80 yards of open turf...and the problems one encounters are the same...especially if you are going to try to double team a great WR or TE...
Part of my frustration with CP is that it seems as if no WR is intentionally double teamed in his defenses. The safeties will tilt at times, but they won't commit. Sometimes you HAVE to double team...like the Cards should have against Torry Holt when he was personally destroying them and their chances to win that football game.
What I used to do is double team the best WR with my worst CB under and my second best safety deep...because I wanted my best corner to play the island and my best safety to cover the middle. It's amazing how, when the opponents know their best WR is getting double teamed how they don't even try to throw to him. This is what coaches hope for because they are gambling that the other team won't be able to beat theirs with their other receivers...and because of the physchological advantage created by taking away the #1 option.
The Cards could decide to double team every #1 WR they play against---many snaps a game, and Rolle could be the under CB on every snap that way...and he won't have to hold because he will know he has deep help.