Dhoni and field placings for spinners

This is a little bit of a stuck-record issue for me (c.f a Different Strokes post on the same subject a little while ago), so I"ll try to keep it brief. Dhoni's field setting in tests for spinners is bad beyond belief. I haven't seen him set a backward short-leg for an offspinner almost ever, and now, Ojha is bowling, in the middle of a tight spell with no silly point. What makes this worse is that Watson, a nervous nineties ninny, is in the nineties and blocking away. I cannot wrap my head around this no matter how hard I try.