SB improves as you train the rest of inside skills. I think LI will dominate even more if you make interior players more cheap because you dont pay for the undesired rise of SB. The hight price of interior players is the only reason we don´t see too many teams focused in interior atack. Perhaps it´s not as crucial in II division, with a huge amount of income as it is in IV and V division were you can mantain 2 good exterior players for the price of an interior one.