This is the problem I see with the program he is in. It is great for the player, and good for the league from a public relations point of view. But for someone like Isaac who still is not getting all of his technique down he needs way more snaps, and he can't get that on the Cowboys. The team can't afford to give him that much time because he is too far behind.
He is better served to head to another league where he can play and work on things like pad level and hand technique.
Xwalker has some pics of him getting lifted and put on his back. Isaac is a big dude. If he understood leverage more and develop good fundamentals there should be no reason why he should have had that result.
He needs more live fire situations.
His problem has never been his size, its been his footwork and as you said leverage skills.
Stepnoski was at the other end of the size spectrum and was considered an undersized Center even for that era, but he made up for the size indifference by utilizing brilliant hand tech, and maximizing body control.
Step may be a bad comp, but I chose him because he is the polar opposite size wise when comparing to Alarcon, but both share the leverage issue, hopefully there is still some time for Acorn to learn to get smaller in his game.
Meaning he has the exact opposite of Step, Acorn has to develop a base strength leverage point, he has to lower his center of gravity to be able to anchor.
Doesnt matter your size, how big or how small you are, you have to identify your core strength first when playing in the trenches.
On a side note, I always felt that Step would have made a great OL coach.