When asked if he was concerned, Reich was rather succinct with his answer in regard to the three-time Pro Bowl selection.
"No," Reich said on Wednesday. "I'm not worried at all."
The Colts are taking the slow and steady approach with Luck in his rehab from shoulder surgery that forced the 28-year-old to miss the entire 2017 season. The team believes that rushing the quarterback's return has only added to his troubles.
Luck has concentrated on his footwork during OTAs, as he has taken snaps from center and worked on dropbacks.
"I'm completely comfortable with him throwing when he's ready, when the doctors say he's ready," Reich said. "He's totally engaged in every aspect of what we're doing mentally. The physical part for a guy like him, you've got to work at it, but I'm not worried about that. That's plenty of time."
The overall No. 1 pick in the 2012 NFL Draft, Luck admitted he "pushed a little too hard" in his attempt to return to action after having surgery to repair a torn labrum on Jan. 15, 2017.
Recurring soreness in Luck's shoulder prompted the Colts to finally shut him down two weeks after he returned to practice in early October. Luck was placed on injured reserve on Nov. 2.
Luck started all 16 games in each of his first three seasons, guiding Indianapolis to identical 11-5 records. After he was limited to seven starts in 2015, he made 15 starts in 2016, throwing for 4,240 yards and 31 touchdowns versus 13 interceptions.
For his career, Luck has completed 1,570 of 2,651 passes (59.2 percent) for 19,078 yards with 132 touchdowns and 68 interceptions. He has 286 rushing attempts for 1,442 yards and 14 more TDs.
Last season, the Colts finished 4-12 with Jacoby Brissett starting 15 games at quarterback. Brissett completed 58.8 percent of his passes while throwing for 3,098 yards and 13 touchdowns with seven interceptions.
The Colts are 43-27 with Luck under center during the regular season, and they are 10-16 when he does not play.