Three headers? :eek:
I'm sorry, but this sounds like a recipe for disaster. I can understand wanting to play fewer high balls, but to virtually eliminate them completely seems like a complete waste of time, in my opinion.
I've played with Arsenal who really only have a couple of what you might term "tall" players by Premier League standards (and I sold one of them after my first season), so my style was to keep the ball on the ground. However, I played a number of long through balls to my wingers and striker for them to run on to, and a number of crosses for my striker or far side winger to tap in.
I still had a few headers (I'm not sure of specifics, but probably around 5 each?), quite a few of which were uncontested, so it was basically a free header point. But on the whole, it was the footwork of Henry, van Persie and Hleb (and now Messi, Ronaldinho and Eto'o as I've moved clubs) which ran the show. My midfield three always pass on the ground in a little triangle with each other before launching the killer through ball.
My point (eventually

) is that playing it solely on the ground is a really bad idea. I understand you don't want to be lumping balls all the time, but reducing high balls to the extent that you're trying is very unlikely to work (in my experience). I think there's little chance of you avoiding one-dimensional, easy to counter play.
I mean think about it. Play any team with a tight formation, high closing down and quick tempo and they'll break up your play so easily and exploit the space. Their tight marking will also give your players no options to pass to if they have to go along the ground (through opposition players) and there will be no creative spark in the team.
That's to say nothing of wet-weather games.
I would create a system that plays on the ground most of the time, but is able to play precise longer balls when necessary. Otherwise, the one dimensional play won't win you anything.
And I assume that's the point of any tactic, right?