Let's look at their two actual meetings (even though Linehan was the OC, Garrett no doubt has a say in everything):
1. Dallas at Houston 10/4/2014
Dallas won 20-17 in OT (The Tony Romo Spin-o-rama TD to Williams Game)
Dallas Gained: 24 first downs, 140 rushing yards with 1 fumble lost, 324 passing yards with 2 TDs, 1 INT and 2 fumbles lost by Harris. Those are stats you would take every week except the 2 turnovers (Houston had only 1 turnover - a Ryan Fitzpatrick (!) interception.
Romo sacked once for 8 yards.
2. LA Rams at Dallas 10/1/2017
Rams won 35-30 (Gurley seam pass game where Heath took a horrific angle)
Dallas gained: 22 first downs, 189 rushing with 1 TD (Morris had a 75 yarder), 252 passing with 3 TDs, 1 INT. 1 other fumble by Switzer on a punt return (Grrr).
Dak was sacked twice for 1 yard. Dallas started FG, TD, TD, TD before cooling off.
So both times a Garret/Linehan lead offense faced a Phillips D, they gained 20+ first downs, 440+ yards and had success on the ground and in the air. Probably means zippy for Saturday's game, but these are the objective numbers.