Trading Mack left Raiders players stunned, and rightfully so: the idea that Oakland would be waving a white flag on their season not long after signing Gruden to a 10-year, $100 million deal is pretty wild.
The Raiders, still two years away from the lucrative move to Las Vegas, are more retooling than overhauling the roster.
In his first four years in the league, Mack has established himself as one of the top defensive players in the league.
Just two days ago, an AFC source who had spoken with the Raiders said they were unlikely to deal Mack unless "someone really gets their attention with a insane offer".
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Khalil Mack #52 of the Oakland Raiders reacts during their game against the San Diego Chargers at Oakland-Alameda County Coliseum on October 9, 2016 in Oakland, California. He is the difference maker the Bears have been looking for on defense. In fact, now that an agreement has been reached to trade him to the Chicago Bears, they won't see him much at all.
Oakland also acquired backup quarterback AJ McCarron from Buffalo for a 2019 fifth-round pick and placed cornerback Daryl Worley on the suspended list after he got a four-game ban Saturday for violating the NFL's policy on substance abuse and personal conduct.
Part of the Mack trade will now include paying the All-Pro pass rusher, which is now Chicago's next task. Get ready for a half-decade of pass-rushing excellence, Bears fans. The team drafted a bevy of pass rushers and must feel it's enough.
The team's new brain trust, led by Gruden, are trying to win a Super Bowl this season.
Credit goes to Pace for pulling off the deal and also to chairman George McCaskey and president Ted Phillips for realizing the impact of Mack and what he could mean for the Bears.