It's complicated.
On the one hand, OGS should be congratulated for the insight and bravery to decimate the squad from much of its under performing or unsuited players. But Fellaini, Sanchez, Lukaku, Smalling, Herrera is still a talented, experienced and worthy set of players that helped the club get to 2nd.
To agree to do so without getting like for like replacements, and rely on unproven youth players is verging on self inflicted damage. We don't know if that was imposed upon him, or if he is fine with it. I suspect its a financial board decision, he is unhappy about it, but wont say publicly.
So he starts the season with a woefully shallow, unbalanced and inexperienced squad. Almost everyone on this board said we'd we in huge trouble once injuries came around. And thats exactly what has happened. That being said, we should still be beating Newcastle.
A fair assessment on him all depends on what the answer is to the bolded middle paragraph above.