Colin, I really don't understand why you are so opposed to players coming from a particular club. It seems your saying no to Williams because he's from Swansea and has been coached before by BR. In the past you've said the same thing about players from Roma because you feel we've been burnt by the likes of Borini and Aqua. But the argument would seem more emotional than logical as it would be logical to assume as both clubs do well, that there players aren't bad either. In fact in the case of Swansea it would be a fair assumption that the coach who actually established them as a prem team would know better than most which players are the pick of the litter.
But, as I've said on another post, where a player comes from should not matter. The only questions are is a player good enough, and does he make us better. If those two boxes are ticked, and the price is right I don't care where the player comes from. That does not mean we should buy Williams just because the gaffer knows him, although the inside knowledge BR has (and a number of his backroom staff by the way who also came to us from Swansea) maybe worth a dozen or more scouting trips to watch a player in a foreign league to work out if he's good enough or not, but it does mean we should not discount him just because he plays for our managers previous employer.