Disrupting the back line had nothing to do with it.
Boyd-Munce was breathing out of his arse, so moving Gogic into midfield and putting Bolton on was the correct call.
As much as the Mandron and Greive sub got us our second goal, I think taking off a tiring Olusanya invited them onto us a bit more, as he terrorised them the whole game.
If only the he was a more composed finisher, we would have been 2 - 1 to the good, before he went off.