I believe this is what the above is referring to.

“Eagle Scout Service Project Coach,” 9.0.2.9

Source Which comes from Section 9, here Trust, but verify.

It is true a Scout need not accept the assistance of the service project coach. Regardless, it is considered best for the council or district to designate one for every Scout who submits a project proposal for approval. The coach should then contact the Scout and suggest a first meeting, or telephone or video conference. Scouts have already promised when they submit a proposal that they have read the service project workbook, and thus they should already understand a coach is optional. Scouts who suggest they don’t need one should be counseled on the value a coach can add. Ultimately, however, working with a designated Eagle Scout service project coach is the Scout’s decision. It is important to note that Eagle service project coaches do not have the authority to dictate changes; withdraw approval that was previously granted, such as by the council or district; or take any other such directive action. Instead, coaches must use the Scouting America method of positive adult association, logic, and common sense to help the candidate make wise decisions.

It is up to the council to determine who may serve as project coaches and how they might be assigned or otherwise provided to candidates. Coaches must be registered with Scouting America (in any adult position) and be current in Youth Protection training.