formation question

[mcrowder]

If you're asking this, it seems you're making things too difficult in your thinking. It's easy --- how many are on the line? 7 (or more)? Good - formation is legal. Now... all players NOT on the line, and the player on each END of the line, are eligible (assuming proper numbering). Simple.

Don't concern yourself with who's behing whom or what order players are in. Just... who's not on the line, and who's on the END of the line.