I'd love it, that should be what happens.
But we shouldn't be sacrificing McGinn's effect in the hope that Kodj decides to turn up. He's shown too many times he'll down tools for no reason either from the off or half way through a match. If he doesn't fancy it he's useless.
I actually don't think it'd be the worst thing to play Tammy wide and Kodj through the middle. Tammy puts it in for 90 mins every game, but it is a bit late to start experimenting.