There are countless other threads on here along hte lines of 'we're badly coached', 'we have no tactics', 'we have no pattern of play' and so forth. As reactive as fans are (zombie passing anyone?) we're not all morons.
Ole has shown some great man management, seems like a lovely chap and is probably a great manager to play for. But we have one of the most expensive squads in world football, and we play some of the worst football. We're incapable of playing consistent football, incapable of identifying and improving a single system, incapable of not making the same defensive mistakes and incapable of both controlling a game and winning it.
The fact is that without the huge increase in penalties, Ole would have been fired already, because we'd of finished miles off the CL last season.
Poch has shown far, FAR more tactical COACHING ability than Ole at Southampton alone, much less what he achieved at Spurs.
If our club was run by footballing folk interesting in winning at the football, this wouldn't even be a question.