Reyes is hitting .140/.178/.209 on the season with one homer and one RBI. That simply is not a starting caliber player and his defense only hurts his case of getting reps at the position as he has -10 DRS at third for his career.
Meanwhile, Flores has not been too great himself this season as he has struggled out of the gate with a .222/.300/.403 slash line with three home runs and seven RBI. His defense is pretty awful at the position as well with -20 DRS at the hot corner over five seasons of major league experience.
So, right now, neither represents a great option for starting purposes at the position.
With that being said, why not try out Luis Guillorme at the hot corner?
The left-handed hitting middle infielder by trade has a career slash line of .285/.362/.333 over five minor league seasons, including a .300/.394/.433 line this season at Triple-A Las Vegas.
However, his glove is his biggest weapon, as he has been recognized as one of, if not the best, gloves in the organization.
While it could be argued that moving Guillorme to third could have different results, as he has only had 18 innings for his professional career at the position (17 in Double-A Binghamton, one in the majors), it is certainly worth a shot to see if his defensive prowess would translate to the hot corner.
Now, the best situation, defensively, would be if the team moved Asdrubal Cabrera to third (one DRS in 2017) and had Guillorme stay in the middle of the diamond at second.
With Todd Frazier not likely to miss any extended period of time, though, it might not be worth putting Cabrera at a position he does not particularly like to play and risk upsetting him or the rhythm he is currently in.
To the contrary, though, they should not continue to just trot Reyes and Flores out there every day as neither has offered much on the offensive or defensive side this season. At least with Guillorme, the defense will likely be better than the both of them and it is worth finding out how he can adjust to the majors before sending him back to the minors upon Frazier’s return.
Maybe if he impresses, Guillorme could end up replacing the struggling Reyes on the roster as the team’s utility infielder.