Trying the same thing and expecting different results is what again?
We over paid Cobb for years and he never lived up to the hype since his first contract... my buddy is a smart Eagles fan, said the the NFC East CBs have almost entirely sucked this year, the whole division, making their WRs stand out in terms of stats, when I was talking about the Redskins rookie WR that I wanted the Packers to draft.
Also this scheme normally does best when they're using large slot WRs, really more WR/TE hybrids, or straight up TEs... our 3rd round TE selection last year MIGHT be able to help a lot with that slot problem
IF he develops like people are hoping he does. But a large target that can be big over the middle, run great routes and be physically in the run game.