The US Naval Institute Proceeding November 2021 issue has an article that argues
While command center staffing only marginally increased, the creation of sectors diluted SAR expertise by increasing watchstander knowledge and training requirements to include those necessary for all Coast Guard missions. In particular, the operations specialist (OS) rating has endured the lion’s share of changes to core watchstander roles and responsibilities. As a result, the entire enlisted rating—which performs critical functions in the SAR chain of command—is at risk of collapse.
I was a district watch stander back in the stone age, before we had software to help planning, and before the Sector reorganization. I stood a 24 hour watch with an enlisted assistant and even then we did more than SAR. While I have not seen any indication his conclusions are valid, I am too far removed to trust my own opinion. I would welcome comments.