Tom Wittman named executive advisor before retiring at the end of the year.
Former TriOptima CEO takes over from departing Steve Husk.
Lauren Dillard starts her new role on June 17.
Fidelity veteran Michael Baker will lead software development in his new role.
The new hires will focus on growing the firm's institutional business.
The industry body creates member-services and business-development roles.
Donohue to remain executive chairman.
In his new role, he will helm the firm's global development team.
BoA vet brings experience in building high-performance global infrastructures.