He's got plenty going for him. He speaks well. It's pretty clear that players respect him and enjoy working with him. That's a huge deal, as we've seen how toxic things can get when it isn't the case. It's also a nifty thing for recruitment purposes.
But I'm worried about Silva the tactician. Generally speaking, I don't think his gambles are worthwhile. We play high up the pitch but aren't that good at winning the ball there, which often leaves us exposed. We commit lots of men forward but attack mostly through the wide areas, which mostly leads to crosses and pretty much any well-organized defense can deal with those.
And he also makes weird decisions like today. The back three was fair enough against the two centre forwards of Burnley (it's nice to have a spare CB to sweep up) but made no sense at all against a lone striker today. And I'm not having the "don't change it if it works" philosophy because he did change it -- he dropped the target man (very important, we're a better side when DCL plays) and made a defensive swap in the middle of the park. If he was willing to change that, why can't he change the shape as well?
I think Silva deserves a full two seasons to work it out, provided he's not doing horrible things to the squad like the last three managers (this doesn't seem to be the case). But he does need to work some stuff out because his team selections are costing us points. This squad has its issues but it's too good to be swapping spots in the table with the likes of Wolves, Leicester, Watford, and West Ham each week. We should be creating distance from that pack.