Do you guys honestly think that Bellefeuille is the reason we didn't have four 1000 yard receivers again? Quick, name the only team to have two 1000 yard receivers this year...that's right, the Als. Offence, and passing in particular, was down across the whole CFL. Add to that Terry Vaughn who left, and Stala who played at least half the year hurt, never getting into a groove, and it's no wonder that the receivers didn't put up numbers like the year before. At the pro level, a receivers coach won't change the fundamental way a receiver plays. That is, he won't affect a receiver enough to start dropping balls. While he will do some coaching on skills, he's more there to help the receivers with the playbook. Where to go, what to do in different situations, what reads to make in zone/man, things like that. You really can't blame him for the perceived drop-off in production from the receivers.
I personally think this could be a good move by the Als. Sure they didn't go with the popular choice (Chapdelaine), but they got someone with previous experience, who knows the players already, and who has experience coaching in a run first offence (Sask) and now a pass first offence (Mtl).