Kind of this, I suppose. I can't imagine he's sat on his arse watching Seedorf recently and thinks it's sound he's not getting a game ahead of that.
I don't blame him for taking the Rangers offer. Turning the 10-ish good games he's played in his career into genuinely life changing money is fair enough for me. He never had the technical ability of Turnbull so choosing to cash in on that is probably a wise decision on his part.
Throw him out on the left, tell him to try to lump crosses on to Big Weird Harry's heid and hopefully we might see a bit of a resurgence.