Off the top, A combination of:-
Our set up being very reliant on a single tactic: Ralph all, Poch, RussBall etc.
Players having to play to that, rather than their strengths: Everyone under Still.
Our SR recruitment merry go round has left us forever short of options, not to mention first team roles DM and CF for a start
The same recruitment has left us with little physical power or height.
Manager-go-round has us constantly instilling things that more settled sides have got (although tenures elsewhere aren't great).
Foetus managers learning on the job, lacking the nous of others.