Maybe some people will finally understand the point I've been making, that "good enough" is dependent on squad context. If you're really strong in an area, you can afford to set the bar higher. If you have nothing else in an area, then whatever you have is by definition good enough, unless you plan to play without that type of player. Purslow, of course, thought a football team doesn't need left backs when he tried to get rid of our only senior LB.