Considering a player is only as good as the tactics, it's not particularly fair to slate any player for anything except effort.
Lennon has been a consistent performer over the years for spurs and has yet to have a shot off target in the league this season. From shots, he's scored 1 and set up eriksen from 1. He's only had 5 shots, but that's still a pretty decent stat considering how insufferably poor our tactics have been.
Bit more on his stats:
http://www.premierleague.com/en-gb/players/profile.statistics.html/aaron-lennon
Townsend is a young lad who has had nearly the same PL exposure as Bentaleb - he's managed to squeeze 36 shot in on target and has made 67 crosses. He's confident enough to at least have a go, even if his shots are frustratingly poor at times.
Both of these guys play as hard as the tactics allow them. Anyone who wonders why our wingers have no assists needs to look at why that might be - the lineup & the tactics are making them cross the ball in, but there's no real threat to actually do anything with crosses, corners or set pieces (aside from Eriksen's shots).
I seriously question how much of a game some people are watching if they can't see that we play like 3 different sides - our wing players (including defence) are not clicking with the central players, which has led to lack of threat and conceded goals. Our defence doesn't seem fully coherent as a unit of a team.
We've gone from one manager who refused to change things, to another who doesn't seem to be able to stick to a tactic that doesn't involve keeping Bentaleb on (not bashing Bentaleb, but he's like an immovable object - not been subbed off once). We seem to play as inconsistent as rolling a dice in each match, but don't build on things.
I don't think you can change things that much and expect the players to really instinctively know where everyone is, or should be, without looking or having to think. An experienced manager will change everything and players like Townsend will probably turn out pretty decent