Be aware that I'm biased but Amorim will, in my opinion, be one of the top managers in Europe. I've been a Sporting fan for more than 3 decades now and this is the best football I've seen us play without a doubt.
Amorim is a brilliant man manager and very astute tactically. I just love how we play attacking football. I've never seen us play defensively. Probably the reason why City destroyed us. But he is a young manager and he learned from that.
If he ever became United manager, you wouldn't have to worry about defensive boring football. He's completely against that, although he became more pragmatic when facing top, superior opposition. Our goal average in Portugal is 30 scored and only 2 conceded. In the CL we scored 6 and conceded 1. Next two matches against City and Arsenal in the CL will show his real worth.