I mean 'and' are we to take it that every decision Mr. Koeman makes is the correct one? He'd be the first manager we've ever had where that's the case. I like Koeman so far, seems to take no ****, but I'll make a judgement come the end of the season.
Also, I think you're wrong about playing him. He may have wanted a guaranteed start and Koeman at this time is unwilling to do so, but he brought him on last weekend and I'm sure if he'd done well in his next couple of sub appearances he'd have broken into the team.