I'd suggest that with Big Barry's raw crossing ability from the middle of the park, and his 2% better success ratio from corners than the former Crewe* man, he should definitely be starting every game.
As we saw in the season when Liverpool adopted the "moneyball" method and snapped up Henderson, Carroll and Downing, the statistical approach is one that works well.
Its interesting because from watching the matches myself I'd say he offers very little going forwards or backwards.
Which is in fact, wrong.
*this isn't knocking Crewe's fine academy or Westwood who has had a decent season. Just saying, it's a bit like beating Britain's number 3 tennis player.