This thing about a new manager definitely progressing us is interesting.
Some of the names been bandied about aren't really progressing their own clubs .
It seems many think a new manager will have us improving dramatically. Not sure about that.
Some fans demand perfection and at any sign of imperfection the calls for a new manager come in.
As with a lot of unknowns, it is a risk. If we were close to relegation there would be no doubt that we needed change, but we aren't anywhere near and still looking up the table, rather than down. We are far from perfect. However, what we are is progressing and this is all after one transfer window.
I certainly don't think Moyes is the man to take us further forward, than competing for the lower/mid European places. He is also getting on and will be looking at an 'upstairs' job/full retirement in the next couple of years.
I think it would be too risky to get in a new manager for next season, if we are there or thereabouts (top half to Europe). If we are there then it should be about looking for a succession for the season after, at the very least.