^^^^^ A pilot on the property with a seniority number who wants to sponsor one guy/gal brings him/her to MEM to meet with an ACP or the SCP. They all meet -- sponsor, sponsoree, ACP and review the prospect's resume; they shoot the bull, grip and grin, talk about how they're all God's gift to flying, and then it's all over in about 10 minutes.
If you're lucky, you go on a list for review and if you pass muster with the other ACP's, you might get called for an interview later.