For special teams, you have to have a kicker that can put the ball at least inside the three yardline. Odds are high that this will get sorted out by August, I think.
But your special teams coach has to carefully review film of kickoff coverage. If a guy isn't flying down the field or is consistently out of position you either coach him up or you put a different player in his spot. Careful film review is so important here.
Having a kicker that puts the ball deep down the field is the bigger of the two issues IMO. But the other issue of poor alignment, angles, and overall execution on coverage is so fixable that it's almost painful.