Dice is our best player to go with Duncan in the post but since Pop wants to rest him, Dice doesn't want to start, and Dice loafs through the regular season as a way to save himself for the playoffs, I don't see the reason to put more of an emphasis on him right now. I have no idea what Pop will ultimately do, but my guess is Pop will play Dice more minutes in the playoffs and Dice will play much better, just as he did last year.
Splitter hasn't gotten a lot of minutes. Yes, he's played against garbage feeders. But he hasn't been incredible. It's not like he's played out of this world against crappy compe ion. He has problems rebounding and finishing. He still needs work. As does Blair. Blair has proven himself through some solid play last year and working on his game in the offseason. To me, that's one reason why Pop is starting Blair, but it's not like Blair is playing huge minutes. A lot of people are writing Blair off already, with the implied assumption that Splitter is going to be awesome. For us to do well they both need to play well.
Splitter has been steadily getting more minutes. Who knows what Pop is going to do, or how the players will respond. I don't see what there is to be up in arms about at this point. Obviously the defense needs to improve, but the issue starts with Duncan and is an issue with all the players. I think the whole team needs to step it up more than I expect Splitter to save the team.