it's probably won't be a popular opinion, but even through the down-votes i'll state it for discussion.

blind has attacking qualities none of our defenders posses.

jones and bailey can start attacks from the back by running, but they lack the passing qualities blind possess.

valencia is a bigger attacking threat in the box due to his speed and agility, but his crosses are lacking.

rojo,darmian, smalling and injured shaw(before the injury it was different), cant attack well.

so against bottom half teams, where another attacking minded player can be the difference between breaking the parking bus, he's and excellent reinforcement.

but if we face a higher quality team or a fast winger, we can play with him. if he's in a 1-1 against a pacy attacker, we're in big trouble.

De-bruyne slaughtered him in our city game, he was embarrassed by Traore where Fred just by luck didn't set boro ahead in our last game.

i also remember his WBA game last season where he gave rondon space to score.

so for conclusion, blind isn't good enough against better teams but is a force to be reckoned with against lower teams. he's versatility as lb/cb/cdm is also good, but we have player's like fosu-mensah who can fill that gap.