It’ll be a ‘test’ with rules designed to favor the F-35. The A-10 pilots will be ordered to perform to make the F-35 look good.
An honest test will include former A-10 pilots who don’t answer to the USAF generals who are members of the F-35 cult.
Just one
You will be looking a long time
A more honest implementation would be to have the F-35 take the role of CAP and SEAD, and let the A-10 work the close in targets. The A-10 can take much of the damage, the F-35 can’t. There is a place for both platforms. Remember, in the end it all comes down to the infantry.