Watson only has himself to blame. If he had a manager, they would have been working in the background since November 1st last year testing his value. As it is, it sounds like Watson waited for an offer, and only then thought he’d test the market.
Mann signed earlier not because he’s a priority, but because his manager already knows what interest there is from other clubs and his player’s value on the open market. Once the offer from the knights came, it would have been a pretty quick decision to make.