Of the 26 brackets in the matrix that have been updated since last night, Tennessee is in 21 of them and is no longer considered the last team in.
Last 4 in according to the Matrix:
Kentucky (24/26 11.5 avg)
St. Mary's (23/26 11.22 avg)
Tennessee (21/26 11/71 avg)
Boise State (18/26 11.44 avg)
*LaSalle is in all 26 brackets, but has the lowest seed average:11.85)
It's my understanding that the 11 vs. 12 distinction is made based on some automatic qualifiers that will get a 12 seed like Bucknell, Belmont, LA Tech, Akron, etc. So it's more important to look at first, how many brackets have you in, then what your average seed is.
First 4 out:
MTSU (7/26 11.29 avg)
UVA (6/26 12.17 avg) (Some people are giving them a 13 seed????)
Ole Miss (3/26 11.67 avg)
Iowa (2/26 12 avg)
Baylor and Alabama are listed in 1 each.