In fairness, he did.
We started the 2nd half very badly, had the enforced injury change then he used up his last 2 subs on 62 minutes in an attempt to stem the tide. We were being over-run in midfield and Scott Allan was a bit lost on the right.
I don't think the changes he made were the right ones but he was trying to shore it up a bit and make it a bit harder to play through us. It didn't work and the pattern of play before the changes was exactly the same as after them.
By then he'd made all his subs and whether he saw the goal coming or not, I don't know what more he could have done with his subs made.
Put it this way though - everyone in the ground saw the goal coming so I'd be amazed if he didn't.