I would say they have replaced Downing for a similar quality of player in N'Zogbia with less money than Downing. They are still down of Young and now have a manager who at best can be described as average.
I'm not bothered. We have Barton, Jonas, Marveaux (or whatever he's called) and Ben Arfa all for the wings. Also we have the likes of Lua Lua (well for future years in anyway) and Ferguson trying to break into the squad as well.
It shouldn't be goal line camera's, it should be the chips in the ball. Theirs still cases where camera's are inconclusive and chip systems are more accurate.
It clearly states on that website that they are unconfirmed rumours. Until the club announce it or we see it done/work carried out then I refuse to believe it and hold out hope that it's not true.