Think we've got to go 4-1-4-1 and have Barry sit in front of the back four to provide extra support against the long-ball and play more side-to-side as opposed to box-to-box. Have McCarthy and Barkley play beside each other to provide more late runs.
Mirallas should start on the left. He provides the support coming off the left for Lukaku that we are sorely lacking at the moment, keep Deulofeu on the right.
It would be a bit ambitious, but we have essentially four centerbacks and Barry and Barkley should have no problem linking defence and attack, with McCarthy providing the box-to-box running.
I consider this a must-win. I fucking hate playing Allardyce teams though and Sunderland have deserved to go down for years so hopefully we can help them on their way.