He may well have put the squad together for less than some of our rivals, which is impressive.
However man for man we have one of the best squads in this division, yes he has taken risks on players not use to the English game and credit there. However this squad is under achieving, it is a top 3 squad, yet we are scrambling around for 6th place, as we are far too inconsistent. He is the one that picks the team (tinkers) and sets out the tactics, so some of this has to come back on him.
We've been in a position to win games so many times this season that you can't really blame Gus for the fact we're 6th instead of top 2. If he was still a player, you'd have banked on him to put away enough of our chances to get us there. Sadly, as he can only watch us spurn opportunities from the sidelines, there's not much more he can do.