What?
His attitude?
Any evidence?
No actual evidence that's why I said I think

But basing it on Koeman saying we wanted someone who was prepared to fight to be number 1 rather than someone who was an automatic pick.
Makes me think that he didn't want to be seen to be dropping down the PL and take the chance that he'd be dropped again.
Fair enough but doesn't make it too attractive to us given that if his mentality wasn't right and he started making mistakes that would have been really bad news.
The problem is that there was surely someone else out there who would have taken up our position.
Similarly with the sub striker role.