FormerCowboysdefensivetackleLeonLett,whoisnowacoachinDallas,DiscountNikeShoesOnline,attendedthesentencingphaseThursday,andBryanWansley,theteam'sdirectorofplayerdevelopment,testifiedaboutaspectsoftheleague'sandtheteam'ssupportsystemsforplayers.Brent'sconvictioncomesafterweeksoffiercedebateaboutaNorthTexasteen,EthanCouch,whoreceivedprobationforintoxicationmanslaughterafterawreckthatleftfourpeopledead.Couch'scase,andtheso-called"affluenza"defensehisattorneysemployed,becamethesubjectofwidespreadscrutiny.