I think he probably includes Baron in that group but I'd bet the biggest culprit was Pietrus. Baron never seemed to be sulking nearly as much as him.
It was probably the guys that aren't back here this year. Pietrus, Barnes, Baron, etc. I'm sure Ellis and Beans knew they were going to get upped, but Pietrus was sulking quite a bit like you guys mentioned. Plus, I'm sure Baron knew the right way to sulk (away from the eyes of fans). Baron was all about the money. If he missed 36 games in a season, he'd still feel entitled to all that money even though there should have been a limit on "sick days' for the amount he's paid each game and how he never really worked on getting in better shape before Don Nelson. Plus, maybe the management might have remembered something certain players did during the time of "before Nelson."