Bryant made just one catch for 44 yards in his side's defeat to the New Orleans Saints despite entering the game with 51 receptions in nine games.
"The other night, we were not [getting the ball to him]," Garrett told the Fort Worth Star-Telegram. "I think he got two.
"Typically, he's gotten many more than that, and I think his production speaks for itself that way. But he's one of those players you want to make sure you give him chances."
The Cowboys are 5-5 in their season following their defeat to the Saints.