When you see Ramires and Lampard being overrun in midfield all game (specially Ramires, awful season he's having), go up 2-0 but being painfully clear that if he didnt change the setup around we would concede sooner rather than later. Done, we concede, 2-1. Still no subs, we concede again, 2-2, no subs. He brings Torres for Lampard in the 78' minute, hardly astute.
Moving Luiz to the middle and bringing on Terry for Ramires would have made the game easier.
I think he's generally a good manager, but his subs constantly piss me off.