3. He is an excellent tackler
Sep 21, 2014; New Orleans, LA, USA; New Orleans Saints free safety Rafael Bush (25) tackles Minnesota Vikings quarterback Teddy Bridgewater (5) in the first half at Mercedes-Benz Superdome. Mandatory Credit: Crystal LoGiudice-USA TODAY Sports
Bush had ample opportunity for experience last season as both Kenny Vaccaro and Roman Harper missed extended periods of time. During that time Bush had quite a season for himself.
According to Pro Football Focus (subscription required), Bush played like one of the best defenders in the NFL in the two areas a back end defender should be able to handle: overall tackling and pass defense.
Bush had less snaps than Byrd or Jenkins and was targeted more because offenses thought he could be a weak link. If they try him this time around, they might end up regretting it.