One of my pet peeves is not just kicking the ball out of the end zone every kickoff. The risk of big return and injury far outweighs actually making a tackle for what may be a couple/few yards less (on a positive play).
I also hate that directional punting is a lost art. Kick all kickoffs out of the EZ and execute punts to the sideline and OOB and you barely need to even have ST coverage and reserve rosters spots for 'ST demons'