Well, latendresse was sent back after his first camp where he played really well. I don't think keeping him around the 2nd year was a mistake. The problem came from management not being patient enough. He should have been paired up with Koivu and stayed there, they were working well together.
He proved he was ready when we traded him. We just misused him completely.
As for Gally, I agree, sending him down won't hurt him at all. That being said, it doesn't mean it would help him more than staying with the big club. I think it will come down to whether or not management finds it worthy of wasting an ELC year in a transitional year (half a season) where we're likely not to make the post season anyways.
Might as well send him down, let him go back to his dominating form, see how strong he can perform in the POs, give him another summer to work hard, and see how great he comes in next year.