This response may appear to be a duplicate, but it came to me twice so replying just in case the other question is misplaced or miscued!

This is a Coarse Tall fescue. If this grass appears across your lawn in clumps I can see why you might consider it unsightly or inconsistent. I might point out that it is more drought resistant than other grasses such as Kentucky bluegrass. But depending on whether it is clumping or spread more evenly across your lawn a “remedy” is possible.

Essentially there are two remedies - cultural and/or chemical. Cultural control (assuming manageable and not widely present across your lawn) would involve digging these areas to a couple of inches below the soil level, then adding new soil, grading it, then applying new seed. Also, maintain your lawn at a height of 3.5 to 4 inches. This allows your desirable grass to shade the soil and "choke out" or hide the fescue clumps over time.

Chemical control (due to scale of issue or perhaps difficulty in the physical work of digging the area(s) out) are widely at your favorite garden or hardware store. Be sure to follow the label instructions

I attached a few educational produced links for you to review and make your best informed and most effective remedy.

Pain in the grass: Tall fescue - Plant & Pest Diagnostics

Tall Fescue.

Extension and Turf Tips | Turfgrass Science

Though Ohio has been cool and wet yet this season the best time to seed or rebuild turf grass is spring and fall - perhaps best in the fall. Good luck to you!