The editor timed out before I finished.
A player who lines up and is neither a back nor a lineman, if he is not the QB, causes the formation to be illegal under 7-2-3. He can’t legally go downfield on a pass, he’s not an eligible receiver, he can’t legally touch a forward pass, and he can’t be in motion at the snap unless he fulfills the requirements of 7-2-7.
All of these are fouls. All routinely occur when the wingback lines up too close to the LOS. All are routinely ignored. Until now? Stay tuned.
@US31 does that answer your question?