Rizzi: Rattler and Haener will compete in practice to see who starts vs Commanders

Yes and No. If it's just for the public, sure. But if they really don't know at this point of the season who they want starting then they should be unemployed when the season is over.
They know who they want to start they just cant afford to lose any small edge because the 2 quarterbacks do not equal 1 Mid NFL starter at this point in their careers. It justs adds a small stressor for the DC of Washington.