The Dallas Cowboys' defensive overhaul got off to a rocky start Sunday against the New York Giants. Per CBS Sports, the Cowboys recorded the worst defensive success rate of any team that day, a concerning early indicator for a unit that underwent notable changes this offseason.

Christian Parker and other new defensive additions now face immediate pressure to justify their additions. Meanwhile, the offense also underperformed. Per Blogging The Boys, Dallas came out flat after a drama-free offseason, with receivers failing to be productive for much of the game and the offense looking like "a shell of the potent offense we saw last year."

Yahoo Sports and Blogging The Boys both pointed to specific plays that proved costly, though the outlets did not detail which plays those were in their summaries. The disappointing performance across both sides of the ball suggests the Cowboys face early adjustments ahead.