O-lineman "intelligence" improvement

[Michigan Joe]

Does anybody allow offensive lineman to be audibled if the lineman doesn't have a defensive player directly across from them? It seems to me that this would go a long way in improving the strategy of "traditional styles" of electric football. I am a big fan of the ITZ dial bases to help resolve the issue of the stupid electric football lineman, but it seems to me that allowing unengaged offensive lineman to be audibled (angled) before the snap (just as any other skill player can be) makes for a more realistic game play and would be more fun in setting up plays.