When I created the NBA league it was will the intention of testing the importance of physical size on the offensive line.
I drafted my offensive line solely based on strength, run blocking and pass blocking and only selected smaller players like FB & RBs that fit that criteria.
It was a complete failure which made me believe taller players with at least 280 lbs were needed on the offensive line.
Side note: some of the best owners in MFN want speed at LT to offset the speed of edge rushers