With its packed slate of events already colliding with the presidential election calendar and donors growing wary, the foundation has commissioned a study from the powerhouse Boston Consulting Group on how to improve the foundation’s showcase endeavor, the Clinton Global Initiative or CGI, while a 2015 study flagged concerns that Clinton’s presidential campaign could hurt a separate project, the Clinton Health Access Initiative.

Foundation CEO Donna Shalala late last year warned staff of possible restructuring and election year uncertainty, and wouldn’t guarantee that CGI would follow through with plans for its flashy annual meeting in September, according to sources familiar with her conversations with staff.

Supporters of Hillary Clinton’s campaign privately grumble that the foundation is diverting the attention of Bill Clinton, her former president husband — as well as key donors — at a pivotal moment in the presidential campaign. They argue that CGI should suspend planned events during the primaries and just before the general election.

“Gosh, can’t they relax a bit on that work and focus on winning Iowa?” said one bundler.