Only a bust in the eyes of those who honestly expect him to return as an unquestionably dominant All-Star center for the life of whatever contract he signs, Andrew Bynum is currently the open market's most polarizing player.
Even though he's a mere 25 years old, Bynum's injury history is very real. Including the lost season of 2012-13, in which he played zero games and neutron-bombed the Philadelphia 76ers, Bynum has only played 82 games once in his eight-year career, as a 19-year-old in 2006-07.
He's also logged over 31 minutes per game just once, and that happened in his last year with the Los Angeles Lakers. Injuries are nothing to joke about, as is Bynum's nonchalant attitude towards being a professional athlete.
He's repeatedly behaved in irresponsible ways—which means absolutely nothing if he's scoring 20 points and grabbing 10 rebounds a night, but there's no guarantee he's that player.
And even if Bynum is healthy for the duration of his next deal, his work on the defensive end is below average, especially defending the pick-and-roll, which is something he needs to at least become competent in if he wants to reach his full potential.