C-USA added some awful, awful basketball teams in an attempt to shore up football numbers and lost an elite program along with a couple of good ones. We're nowhere near as good of a conference as we were five years ago, and this year's UAB wouldn't be 20-5 if they had to play a C-USA schedule from five years ago.
If by awful teams, you're referring to LT (three straight regular season championships, one in WAC), ODU (Been to the NCAA 4 times and NIT twice since 2005), WKU (one sub-.500 season this century, 7 NCAA appearances with a trip to the Sweet Sixteen, and two NIT appearances in that time span, more overall NCAA wins than any other CUSA team has appearances at 19) MTSU (two sub-.500 seasons this century, one trip each to the NCAA and NIT in that span), UNT (05/06 09/10 five straight 20+ win seasons from 05/06 through 09/10, with two NCAA tournament appearances), UTSA (04 and 11 NCAA appearances), or Charlotte (Missed the NCAA or NIT four times from 91/92 through 07/08, another NIT appearance in 12/13), then sure, some terrible awful teams were brought in. Even F_U, which have pretty bad basketball history and only started their teams in the 80's, have been to the NCAA tournament more recently than MU.
So yeah, I'd say the conference made some excellent additions in basketball - especially WKU, ODU, Charlotte, LT, and MTSU. I'd say they make up for losing Memphis-post-Calipari, SMU, and Houston. Just wait until all these teams get their crap together - a CUSA with WKU, ODU, UNCC, LT, MTSU, MU, UAB, and UTEP playing to form would be terrifying.