If it is Ismael let's hope Gueye can stay fit, he'll be key to his general approach working this season. Of the candidates his approach is less likely to change what we have in a considerable way, if anything it will be further simplified and there will be even less playing out from the back. The worry is we become too easy to read and rely on hopeful long balls. I do think we have the players to potentially make it work though. I personally prefer him to Wagner, Karanka and some of the others that have been listed and as I said, I think he would cause the least upheaval in terms of how we set up and play between now and the end of the season.