Four-player draft class an indication of Patriots confidence in roster

FOXBORO — The Patriots had only 50 to 75 players on their draft board. From that group they took only four this weekend: Youngstown State edge defender Derek Rivers, Troy tackle Antonio Garcia, Arkansas defensive end Deatrich Wise and UCLA tackle Conor McDermott.  What are we to gather from that? Does that miniscule class — the smallest in team history — mean this was a particularly shallow pool of talent? Patriots director of player personnel Nick Caserio seemed to indicate otherwise about a week before the draft during a press conference. "Look, there's good football players top to bottom, I would say, across positions," he said."Our job is to find the ones that fit for us. The reality is,