Im really keen to see how he adapts his formation over the first few months to suit these players and the league. Naturally I am expecting us to play with fullbacks for wingbacks over the next few seasons if things go well, and only we have the squad where it needs to be in terms of quality and understanding of the formation, do I think we will then start deploying wingers in those wingback positions.
I believe Amorim did this at Sporting, and in the PL, managers such as Pep have done the same.
With our forwards, im expecting him to play with a more classic front three early on, and then shift towards having the wide players operate as attacking mids behind the striker. Or perhaps do what Mourinho did in his early years and have a lopsided attack, with one winger hugging the touchline, and on the other side, the winger plays more centrally to allow the fullback on that same side to attack higher up.
I fully expect him to adapt his formation many times until he figures out the correct way to tackle the Premier League. The only signing im expecting in January is a left wingback, and so I think he will give every other player a chance.