He'll cede the shortstop duties to Cliff Pennington, who is hitting eighth on Friday.
Colon played sparingly after a stint as a starter in the wake of an injury to Alcides Escobar. A 3-for-22 slide has lowered his average from .286 to .244.
The 28-year-old Coleman should finally receive an opportunity to make his big-league debut, but his promotion might be mistimed. He is in a 2-for-17 slump, though his slash line still stands at a fine .303/.383/.469.
Tulowitzki has embarked on a 15-game hitting streak and stretch of 30 games in which he has reached base at least once. But his slugging percentage of .479 is down 124 points over last year, hip surgery has sapped much of his power, and he is earning $20 million, which could make him tough to move for the talent Colorado might require in return.
Iglesias has totaled 17 multihit games in 67 appearances. He is batting .325 with two doubles, four RBI, six walks, five runs, 10 strikeouts and two stolen bases in his last 22 games.
"Brad is in a pretty good groove right now," McClendon said. "There's still a lot of room for improvement, but he is improving every day. He has his moments [defensively], but most of the time it's just a mechanical thing where he doesn't move through the ball or he stands straight up. I would say the last 12-15 days, he's been a lot better at that."
Taylor will serve as a backup middle infielder and could get some playing time at other positions as well.
"It's still a progression, but I'm feeling a lot more comfortable and a lot better [at the plate]," Taylor said. "It was good to go down there and take some of the pressure off. I was able to stop pressing and just worry about going out there and having some fun again. I'm feeling a lot better now and I'm ready to go."
Castro has started all but two games at shortstop this season, but he has been fairly unproductive after a bounce-back season in 2014. He owns a slash line of .263/.298/.341 with just 26 runs scored as midseason approaches.
Bogaerts opened the scoring with an RBI single in the top of the first inning. He added another single in the fourth and sixth innings before recording his second RBI on his fourth single of the game in the top of the seventh. He had one run in the game.
Bogaerts has been on a steady offensive run since May 31. He has a .341/.463/.821 slash line in his last 30 games. He has one home run, 12 doubles, 19 RBI, 15 runs, three walks, 19 strikeouts and two stolen bases in that span.
The former All-Star is batting .373 with a homer and nine RBI over the 15-game streak. He has now reached base safely in 30 straight games, which also a career-best.
Semien hit a solo blast off Mariners starter Roenis Elias in the fifth inning to put his team up 3-0. He finished the game 1 for 3 with a RBI.
The home run was Semien's first in 158 at-bats.
Galvis is hitting .467 with seven hits and two RBI over his last four games.