The problem is though mate, knee jerking is difficult full stop.
At Hull he took over a side which was as poor as Sunderland and got them competitive quickly. He nearly doubled their points per game tally.
This season at Watford I actually think is his worst job so far. Thats not to slate the guy, but rather to state what a good job he has done elsewhere. Watford were 17th last season and he has got them playing good football, though like you I'd have been interested to see how he'd have dealt with this current downturn in form. That being said I don't think many Evertonians want to wait another handful of games.
If I was Watford I would be looking at things now, and thinking 4 weeks of posturing with Everton could well harm them more than Everton. We have an inviting set of fixtures and the possibility that Unsworth may steer us to relative safety. If he gets the hump and throws the towel in, they could find themselves in a very tricky spot as the games come thick and fast. It could quickly quickly become 10 defeats out of 12 or something with them in and around the bottom 3.
In most of these situations common sense prevails, but not before every party has to what I call moralise their own discourse. Watford have to engineer it that they've tried to keep him and he's a traitor, while Everton and Silva have to make it look like there's been no tapping up.
From this point on I won't pay too much attention on Silva's performance, it's almost an impossible job, being at a club who go through a manager each year, with players who tend to down tools when they know a managers going. I think it would be a big risk for Watford to drag this out much further, with the way games are coming thick and fast. If they mess about too much they could find themselves towards the relegation place quickly.