We all know about Gregg's problems but he does have 21 saves, with just 4 blown saves and a 3.93 ERA. 39 k in 36.2 innings looks pretty good. 22 walks doesn't.
To be fair, he hasn't been that much worse than Johnny Papelbon (and is has much lower jerk numbers). Pap has 22 saves, with 4 blown. Almost exactly the same as Gregg. 3.07 ERA is some better tho. 36 k and 15 walks in 41 innings for him.
So again it is 'do you think he will be traded'.