As former Titans coach Jeff Fisher tries to bring the same consistency in the standings to St. Louis, he’s well on his way to replicating one of his more overlooked accomplishments in Houston and Tennessee. Rounding up problem children. The well-respected coach takes more than his share of chances on players with less-than-respectable character traits. It’s a Machiavellian mindset that trickled down to former Titans defensive coordinator Jim Schwartz, who has had plenty of dice rolls on bad guys come up craps during his time in Detroit. Of Fisher’s first draft class in St. Louis, half of the 10 players taken already have found trouble at the NFL level. Second-round cornerback Janoris Jenkins, a known risk who slid out of round one, was suspended by the team for one game last year. Second-round running back Isaiah Pead, who slid to third on the depth chart last season, will miss the first game of the 2013 campaign due to a suspension under the league’s substance-abuse policy. Cornerback Trumaine Johnson, a third-round pick in 2013, was arrested for DUI in March. Per one league source, Johnson had been removed from multiple draft boards last year after being suspended from his college team due to an alleged frat-house non-food fight, and for being arrested and Tasered in October 2011 after allegedly resisting arrest. Receiver Chris Givens, a fourth-round pick, was suspended by the team last year, and guard Rokevious Watkins, a fifth-round pick, recently received a one-game suspension under the league’s substance-abuse policy — which as with Pead implies some sort of legal violation relating to one of the substances covered by the policy.