Tunnessen and Biviano set to retire from their positions with Pollo Tropical and Taco Cabana in January 2013.

Fiesta Restaurant Group, owner of the fast-casual restaurant chains Pollo Tropical and Taco Cabana, announced a series of management transitions. Jim Tunnessen, executive vice president – chief operating officer of Pollo Tropical, and Mike Biviano, executive vice president – chief operating officer of Taco Cabana will retire effective Jan. 31, 2013.

Danny Meisenheimer will succeed Tunnessen at Pollo Tropical and Todd Coerver will succeed Biviano at Taco Cabana. Both Meisenheimer and Coerver serve as chief brand officer for their respective concepts.

As a result of these moves Fiesta Restaurant Group will promote Vicky Timmer to vice president of operations at Pollo Tropical, and Mark Phillips will assume the role of vice president of operations at Taco Cabana.