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When Garrett hasn't taken the ball out of Romo's hands with the run game, he's put the ball in his hands too often by moving away from the rushing attack when it struggles early in games.
When Jones was the starting running back earlier this season, in two of Dallas' most important early games, against the San Francisco 49ers and New England Patriots, he was limited to just nine and seven carries, respectively.
Now, the 49ers have been nothing short of outstanding against the run this NFL season; but Jones has always been one of those backs that has the ability to break through a hole for a 60-yard sprint to the end zone, and he just wasn't given the opportunity to do so in Candlestick Park that day.
The Patriots defense has been the exact opposite of San Francisco's this year, proving to be a unit that's vulnerable against both pass and run. Jones was only given seven attempts to attack a defense he matched up very well against heading in to the contest.
Even when DeMarco Murray took over, there were two instances where Garrett moved away from the run almost altogether against the Philadelphia Eagles and Arizona Cardinals. Murray was limited to eight carries against Philly and 12 for 38 yards against the Cardinals.
When Romo doesn't have a running game to make the defense worry about, the unit is going to key in on number 9 and when the opposition only has to fear one aspect of your offense, it's fairly easy for them to gain the upper hand.
Out of the seven games in which Romo has thrown 35 or more pass attempts, the Cowboys have lost five of those contests.