Teams arent stupid, they see what is going on, it is too late for him to recover his rep, they see a few good games at season end they aren't going to trust him, it wil be painfully obvious why he is suddenly "motivated".
As for him having good seasons, his rookie season he had barely over 1,000 yards and 9TDs his rookie year, each year after that both yards and TD have decreased.
Look at this TDs each year: 9, 7, 3, 1.
KB has cost himself millions upon millions this year, the tape doesnt lie, the stats dont lie.