Clubs absolutely assess the mentality of players, they assess as much as possible to take as few risks as they can on a player worth millions. Wenger, for a great manager, has only 3 league titles in 18 years. Wenger has had 2 years without any limitations on spending and the club have gone backwards. Van Gaal has had 6 months and has turned the club around so it seems. Wenger has never beaten Mourinho and his record against the top clubs is the worst of any top team in the league. Getting out of your seat and shouting doesn't mean he can impart a winning mentality to the team. Occasionally changing players, usually due to injuries, doesn't count as tactical awareness. How many of the starting 11 can you regularly pick before the team is announced? 9? 10? Often all 11. And if you can, Mourinho can. No wonder Wenger has never beaten him. Embarrassing. Face it, he's a weak, uninspiring manager who continually leaves the club short of a title challenge due to his ineptness and who will never win the league again.