First one was relegated, second one was so headed towards relegation he got fired. Thats really bad for just 12 months in the premier league. I mean he sounds perfect for Everton in the sense that Everton fans like failure and excuses, and he has both even if they sound reasonable.
The fact is Marco Silva is a bad manager if he was unable to keep Watford on pace just because another team tried to sign him. I mean he had 5 months to prove he was a great manager and then have all kinds of teams knocking at his door, and he blew it by losing his team. Thats the best case scenario. The worst case is that he was actually a bad manager with bad tactics and thats what caused the fall.
The last thing we need is another manager who either has poor tactics, or is a poor manager of his players.