Extra points: The Texans coaches experimented with Central Florida outside linebacker Shaquem Griffin at safety on Wednesday, displaying his versatility. … Oklahoma defensive end Ogbonnia Okoronkwo has gotten plenty of time standing up, meaning he potentially could be considered for a 3-4 scheme. … Indiana tight end Ian Thomas has looked good in individual drills for two consecutive days. One scout praised what he called “natural catching ability.” … Arizona State running back Kalen Ballage has moved well for a big guy at 6-foot-2, 222 pounds. He has been fluid too and has run good routes out of the backfield, not a surprise as he caught 64 passes the last two seasons.