Ash,
Chelsea had a sport scientist who came with Jose Mourinho, but I believe that they did not value strength training that much so I would assume this year is the first that they have a Strength & Conditioning coach who has responsibility for strength training. I have a friend who work at Birmingham City FC and having spent some time with him, I would never work in football, well maybe if I was paid as much as some of the players!
In terms of clubs with decent programmes I believe Arsenal and Manchester United have good set-ups, however, some players will just refuse to complete workouts and when you are dealing with egos that big I would imagine it not being easy to get them to do something they have never done