First off I'm not a huge fan of Ken Poms numbers.
IU is an offensive team, but it's not like they can't play defense, by Ken Pom they rank #19 in the nation defensively.
Teams in the top 20 of both:
IU #1 Off, #19 Def
Gonzaga- #3 Off, #14 Def
Florida #5 Off, #2 Def
Pitt #9 Off, #17 Def
Ohio St #14 Off, #6 Def
Louis #15 Off, #1 Def
Just outside: Michigan St, Kansas, Duke, Syracuse, Miami
And really KenPom supports Defense?
12 Kentucky #2 Off, #9 Def
11 Uconn #16 Off, #14 Def
10 Duke #2 Off, #8 Def
09 UNC #1 Off, #16 Def
08 KU #2 Off, #1 Def
07 UF #1 Off, #12 Def
06 UF #2 Off, #5 Def
05 UNC #1 Off, #5 Def
04 Uconn #4 Off, #5 Def
03 Cuse #11 Off, #19 Def
Yeah, nobody who can't play defense wins the national title, but Offense seems to be the more important factor to me.