Indeed, Gabbidon accused the Sunderland boss of thinking he's Pep Guardiola just because he's won a game.
Gabbidon took to Twitter while Everton were 2-0 up:
Big Sam wins a game thinks he's Guardiola changes to a 3 at the back system... 2 down after 30 mins!— Daniel Gabbidon (@Gabbidon35) November 1, 2015
Allardyce's ego, of course, is something that could get in the way of success at Sunderland. Big Sam still believes he should have been named England boss once and his recent vow to keep things simple is something his tactical setup against Everton seems to have ignored.
That said, Gabbidon is perhaps being harsh, while Sunderland may well have found themselves conceding multiple goals at Goodison Park, anyway. The defence Allardyce has inherited can't necessarily be blamed on him.
Next up for Sunderland is a home clash against Southampton, where Big Sam will surely revert to a back four. Everton, meanwhile, travel to Allardyce's old club West Ham United for their next Premier League clash.