Top 12 free agents Dallas Cowboys must decide whether to re-sign

Cowboys have four key defensive backs, including Church, Claiborne

S Barry Church: Their second-leading tackler and top enforcer, Church, 29, has always been physical but he's developed into a higher-impact playmaker over the past several seasons. Church isn't great in space but he's a relentless player and has shown improved finishing ability. His running mate, 26-year-old J.J. Wilcox, is also a free agent. (AP Photo/Michael Ainsworth)
S Barry Church: Their second-leading tackler and top enforcer, Church, 29, has always been physical but he's developed into a higher-impact playmaker over the past several seasons. Church isn't great in space but he's a relentless player and has shown improved finishing ability. His running mate, 26-year-old J.J. Wilcox, is also a free agent. (AP Photo/Michael Ainsworth) — Michael Ainsworth