**WARNING: VINCE RUSSO-ESQUE BOOKING CONCEPT INCOMING**
They could experiment one year with making MitB operate under Royal Rumble/Elimination Chamber rules--2 guys start the match, with a new guy coming out every so often until all 8 are in. Unlike the Rumble, in this case you WANT to come in early so that you don't lose without ever having gotten into the match.
On the go-home show they could do a Battle Royal for a guaranteed #1 slot.
EDIT: the obvious flaw being that while this would work if wrestling was real, since it's not, the match would never end before all 8 entered, or at most it might end RIGHT BEFORE #8 entered just to give whoever it was something to complain about.
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Thank you, Eddie Guerrero.
http://cdn.buzznet.com/assets/imgx/1/5/2/7/4/5/7/1/orig-15274571.jpg