Grace and Sal had the 9th and 10th most minutes on the team this year, so I am not sure what people that question them expect them to be. They are not starters and never have been, and have never really been counted on to score for us.
Grace is definitely not a bust. Not even close. He was and is a very good back up to Grant. We ask a lot out of Grant, and he is a very special player, one of our best ever, so of course there will be a drop off when his reserve comes in. Grace was able to at least do many of the things Grant does on offense and defense, just not as well of course. What I mean by that is we did not have to change things on offense when Grace came in, which is important because it lets everyone else stay comfortable and do their thing while Grant is out. And, he did better and better on defense, like Grant has done, with experience.
Sal is a little more unproven, but it is hard to call him a 100% bust. I don't think he was ever comfortable backing up Grant, and this showed late in the year when he made a few more mistakes, and Grace had clearly beaten him out, resulting in Sal only getting about 3.5 minutes a game the last 8 games. I think Mooney did a good job getting them both some minutes for several games until one guy separated himself from the other as Grant's back up. Now that Grace has shown that, and with the addition of Weir, it makes sense for Sal to not have to worry about learning all the things Grant's spot has to do, and just focus more on improving his game. Think of Cayo. He would be a totally different player if he were backing up Grant, and would not have been able to improve other parts of his game as well. So, the best thing for Sal would be to learn behind Cayo this year. Cayo has improved so much, maybe Sal could as well.