This.
I will reserve judgement if he is appointed and a first season anything close to Bobby's would be amazing and should be the goal and I will him give him 100% support like everyone else.
However, he has been relegated and then sacked from his previous job with a team in freefall. Everyone says that we "turned his head", but that in itself is alarming. We know that fundamentally he is able be distracted and lose focus. Not characteristics of a successful manager. How many times has Pochetino been distracted at Spurs? Hasn't affected the unbelievable building job he has done there. We also could have distracted Dyche this season, but he cracked on and steered Burnley to 7th. This really worries me.
If our player recruitment over the last few seasons has taught us nothing else, it's that if you buy players from struggling teams, their mindset needs a lot of work to change to a positive one.
I'm not sure I trust Silva's mindset given recent history, so he is not my first choice, but I will back him all the way.