I like the job Amorim has done at Sporting. He's meant to be popular in the dressing room and has a clear vision and style of play (said that second bit about ETH though, so who knows when they get here).
I guess the main issue would be whether our squad would have the players needed to fit his favoured 343? I think we do actually, and with the squad needing some major work anyway, if he's the man for us we can always move in this direction. Given the current squad I think something like this would be the best fit:
Onana
Varane - Martinez - Shaw
Dalot - Casemiro - Mainoo - Antony
Amad - Hojlund - Garnacho
Martinez moves forward into the hybrid CB/DM role as suited, with Varane & Shaw holding the back line. Antony could obviously be upgraded at LWB, but Amorim has form for converting wingers into wing backs previously and christ, its not like we can get any less out of him as things stand. Dalot would be ideal at RWB.
Casemiro could be upgraded for someone with fresher legs to help provide balance next to Mainoo, though I still think he's serviceable in the right setup. Mainoo's composure would be perfect for this controlling midfield role.
The front 3 is tricky I think. Amorim likes fluid players capable of close interplay, something our lot have not excelled at. Regardless I think Nacho and Hojlund are perfectly capable. Rashford I'm less sure about and get the feeling he'll be off in the summer anyway. Amad looks ideal for that kind of setup but who knows if he's good enough.
Overall I think that would work much better than our current 'system', whatever that might be, assuming Amorim had the impact he has at previous clubs. Varane, Casemiro, Antony, Shaw and Amad could provably be improved on relatively easily with some clever scouting. The issue more than this starting lineup would probably be squad depth, which is filled with all sorts of spare parts at the moment.
Is he experienced enough and the right character to handle the pressure? No idea. But I think he's one of the most talented coaches out there at the minute.