I agree with all three of your thoughts.
1) The Jets won't be able to beat any good teams if they keep on giving up third and long. (Kansas City converted a ton)
2) Leon is the Jets biggest play maker. Mangini and Shotty must find a way to get this guy the ball.
3) This week is a MUST win. We already blew one MUST win game against Oakland this year, if we lose this upcoming week, I think we're in for trouble. We need to win two of the next three. One of the next three just won't cut it.
A win next week and all is forgotten.