I don't really think we can judge Robinson's appointment until the end of the season. There's been a pretty equal mix of the encouraging- a tactical flexibility and willingness to change things, less 3,4,5 goal pumpings and generally improved performances all with a makeshift team- and the worrying- we're still losing more than we win and seem unable to cut out idiotic individual defensive mistakes.
If he keeps us up,then job done, he's done as well as could be expected given the shambles he walked into. If we go down, then fair enough, criticise whoever you want then.