I see what you mean and hate the idea of continually sacking managers in a Chelsea-esque style.
However, the tactical nativity is such a negative that I think if he shows no signs of improvement in this regard he should go.
How can the manager continuously make incorrect decisions, crap substitutions, and stay in a job? He has done something odd at pretty much each game this and last season.
Additionally at Yeovil the score didn't flatter them, we were weak, second to the ball and clueless after we let their first goal in.