Everyone feels bad for Isaiah. He loved playing in Boston and gave his all for the Celtics. He went from a reserve guard to MVP finalist during his two and half year tenure in Boston. In an ideal world he would have remained a Celtic for the rest of his career. This is the part where we hear about the business of basketball.
I actually completely agree with a couple players most Celtics fans are not that fond of in Ray Allen and LeBron James. Loyalty is a two way street. When players are free agents they should be allowed to go wherever they desire.