The Cowboys were widely ridiculed for picking Travis Frederick in 2013, not necessarily because Frederick was viewed as a bad player, but because it was felt he would have been available much later in the draft.
Dan Kadar, SB Nation's draft guru, gave the Cowboys a prescient A+ grade for the Fredrick pick at the time, but even he talked of a reach.
Almost no one is disputing that the Cowboys took Frederick too early in the draft. But once games start, people will quickly forget where Frederick was picked. He's a perfect fit on Dallas' offensive line and will open a lot of holes in the run game.