How many offensive lineman should the Saints draft next year?

Soldaveri needs to develop. Patrick is a free agent. Having McCoy, Patrick, and Ruiz all out of the same time is not the standard to evaluate draft needs. We have two tackles who are first rounders who can play in this system. McCoy is one of our best players. We extended Ruiz. We drafted Soldavari with the first pick of the fourth round. We have to see if Patrick is worthy of a legitimate contract and just draft for depth on the o line. The real needs of this team is to rethink the type of defensive lineman we have. These long slow defensive ends are horrible at finishing the sack on mobile quarterbacks. We just need speed on defensive as our number one draft need. Mathieu and Jordan are aged. Davis is showing signs of aging. We need a youth movement at all three levels. I am less worried about the offensive line seeing what this team can do in the new offensive scheme than the defensive scheme. Allen has a good defensive scheme but we just need more speed on defense particularly in the front seven. We need a legitimate pass rush threat more than anything on this team. Chase Young is not it. Jordan is not it. Granderson is ok. Breesee is ok. Everybody else is negotiable for replacement.