"But for now in the short term, we feel very good with Marwin playing every day," he said.
Gonzalez, a Rule 5 Draft pick who's a defensive specialist, went 2-for-4 on Sunday in his first game back from the disabled list, the day after Lowrie was injured. Gonzalez bruised his right heel in early June and played in 19 games on a rehab assignment at Triple-A Oklahoma City, giving him valuable playing time he couldn't get in the Minors as a Rule 5 player.
"He did a great job filling in for Jed at the beginning of the season," Luhnow said. "When you have a Rule 5 guy who can play a regular role like that, that's a huge plus. Normally, you're protecting them from being overexposed, and I don't think in this case we have that issue."
Gonzalez entered Monday hitting .274 and was in the No. 2 slot Monday in manager Brad Mills' starting lineup.
"He was swinging the bat so well in Triple-A and playing so well, and we stuck him in there [Sunday] and he swung the bat well again," Mills said. "We get a guy that's aggressive and put him at the top of the order, we're able to do something with him and [Jose] Altuve up there."