Because he's a manager who is obsessed with 'must not lose' and 'consistency'. The latter is why he still plays Keane, despite there being no reason Keane should have ever been in the side other than Dyche's own nepotism.Why not give gray the last 10???
I like Dyche in theory, and I think the type of manager was needed for this squad. But in practice he, just like many managers before him, isn't good enough.