For practically the entire summer of 2021, we observed (and commented on) NIH’s numerous amendments to its long-awaited CIO-SP4 solicitation after it was finally issued in May 2021. By the time the deadline for proposals finally came, it had been amended eleven (!) times. Even with all those amendments, however, it appears that at least one offeror still had serious concerns about the final version. As it turns out, at least some of their concerns were warranted, per GAO, and has recommended the agency to amend the solicitation or revise its evaluation criteria.