What's holding Tulane back in the rankings?

Since the 14-15 CDS data is already out, here’s the data USNWR will use for the next round for #54 TU and #48 Miami:

2008 class 6 year grad rate: TU 83% vs UM 81%.
2005-2008 average 6 year grad rate: TU 78% vs UM 80.5%
Frosh retention: TU 92% vs UM 93%
ACT range: TU 29-32 vs. UM 28-32
SAT range: TU 1230-1410 vs UM 1220-1420
Students in top 10% of HS class: TU 56% vs UM 66%
Acceptance rate: TU 28% vs UM 38%

I’d guess that TU moves up a few slots but stays behind Miami. You still have Katrina in 2 of the 3 years for the 6 year grad rates.