His "friends" are just like him, all about the money.
Justified is not an easy one because they could have dumped him if he'd injured himself and all he would have gotten was some injury settlement and that happens to RB's.
He sees the out of control salaries to QB's, one rumored to be to his own QB, WR's and even DE's on his team and knows the longevity curve on his position is the shortest.
If this was your son, would you feel the same? I'd be telling mine to do the same thing, especially with a team that ran the legs off a RB in his contract year. The QB gets 30M and the RB gets 3? And the QB isn't even considered in the top 10.
Now, add to this that they're the ones that brought up a new contract. Didn't they invite this problem running their mouths? Booger would do better to keep his son off the radio.