If you believe you have prepared properly and fielded your best eleven it seems a bit daft to me not to trust your instincts and let it roll.

From day one I have been totally bemused by SD's substitutions, but he gets paid £80k a week to make these decisions and I don't!

The reality is no manager gets them right all of the time, Southgate in particular, makes some jaw dropping substitutions, but they try their best I'm sure.