I can only assume Huddersfield have promised Watson a decent budget to play with and he feels they have a higher potential than Salford. They certainly produce a few of their own youngsters and in Sezer they have a player they can build a team around. Good luck to him.
However it does feel to me like he is killing time, with no disrespect to Huddersfield. It's only a matter of time until Saints, Wigan or Warrington have a vacancy and Watson will be near the top of any shortlist drawn up. He'll have a good crack at getting Huddersfield in and around the playoffs for the next year or 2 and then it's a case of who blinks first out of the "big 3."