Technically, Sal still has only broken one rule. Lining the coaches up on the side-line is not in violation of any NFL rule if you stay in the coaches defined area, and they were in that area. It just makes his initial transgression seem more premeditated. So, I agree about firing him and fining him (and the Jets). Not sure that it would be legal to ban him from the NFL, or that I would support such a move. If Vick can come back, this guy can, too.
As for Ryan, since lining them up on the sidelines like that doesn't break any NFL rules, it is a non-issue. You can't fine or fire him for doing something that is within the rules. There is no way that he could anticipate one of his coaches making such a stupid decision during a play.
A few teams do this with fair regularity (line up like this on kicks), and we now know that the Jets have been doing it all season. I just wonder, was it the speacial teams coach's idea, or Sal's. I find it hard to believe that a strength and conditioning coach would have thought of it.
But I am a football fan, and this is so minor that it barely registers on my "give a hoot" meter.