What worries me is that Watford did very similar things to Spurs and their lack of quality is the only thing that kept us in that long enough to get a really undeserved draw. If his tactical plan can be figured out in three months to the point of total annihilation and he can't fix it once it goes bad, we're going to be in real trouble. Burnley are not going to play the way Spurs and Watford did most likely so we may get away with it but Brighton and definitely Leicester have the players to expose us again if we don't get things fixed.
A lot of our defensive system so far has relied upon Gana to get the ball and shut off all kinds of attacks. Losing him opens up more space and Silva didn't have a solution for it. A system that requires someone as talented defensively as Gana is in midfield to make it even a small amount effective isn't really viable. He's got a big few months ahead because while we are clearly not top 6 level the team has more than enough skill to finish right behind those clubs and set itself up to make a run at them in the next year or two with more good work from Brands. Not sure the manager is up to it yet.