I don't know what Davis is talking about . . . Garnett is so skinny, there's NO WAY his shadow could cover him.
Haha.
On a serious note, Glen Davis probably wants to be a full-time undersized PF rather than an even more undersized C. DH, at least until he's traded or leaves, will play most of the C minutes.
Davis sees:
1) $$$$
2) Easier job with mostly being a starting PF -- rather than refocusing back and forth with PF / C
3) Less competition or easier to start (No KG on the team)
4) Fullfill his own ego, in his mind, maybe a chance to make an All-Star team or multiple
BBD and TA are two guys who feel their career growth have been restricted/limited by the Big 3. This is an interesting concept of why a quality player would not want to play on this team with those 3 here.