"They've no chance of the Prem, he could do something for them in the CL. "
No, by the time the CL comes round again he'll be nearly due back in the US. Whereas there are several league games in the 2 month time slot he's got, plus FA Cup. The Premier League is the one that matters as there's more chance of finishing in the top 4 of that than winning the CL in my opinion.
I wonder why the African Cup of Nations is still played biennially? Surely it's time it was held only once every 4 years.