I think he just got lazy at Spurs and lost his place.
He's always had a powerful shot, even though he could pass he could never guide his shots very accurately.
MW
Powerful shots mean not much at all. His probably "best" season being 2009/10 in so far as he played 40 odd games, he got 4 goals and 4 assists, he took 100 shots... that's striker level shooting in the prem league, IE very very few midfielders will ever shoot anything close to that. 1 in 25 is pathetically poor, like really really bad.
The year before he had 50 shots... and 2 goals. This season he finally makes it 1 goal in 40 shots.
he's a half decent player, but his thudding the ball around is often pretty predictable, he's a terrible, truly atrocious shot taker yet continually shoots, that is the sign of a bad player. Guys who can't score shouldn't take chances away from other people. He's 27 and hasn't figured out he's one of the worst shots in the league and still takes 10 times more shots a season than he should.
You need more than a half dozen great performances a year to be a great player, you need a half dozen not so great performances, and the rest great, not the other way around.
On his day he can be a great player, so can anyone, it's not his day very often. In that 4 goal 4 assist year, it was actually 2 goals 3 assists in the league, that was 2 goals in 83 shots, against Bolton and Sunderland, with assists against Burnley, Hull and Birmingham.
This season 40 shots, 1 goal, Fulham(who were away so really you could leave the name blank here, he scored.. against no one at all), 1 assist against Cardiff. For someone who is an epic passer(apparently) and has a great shot, he both never scores, shoots to much, gets few to no assists and barely ever shows up, when he does it's almost always against very poor quality opposition. There isn't a lot of information that suggests he's anything other than a below average prem player who occasionally has a commanding performance if the opposition is crap enough.