Marcos J. Pantaleón Prieto, founding principal of APIA XXI, a Santander, Spain, architect- engineer, has been named president of Louis Berger International's design center of excellence. The new role follows the March 14 purchase of the 400-employee Spanish firm by Morristown, N.J.-based global design firm Berger Group Holdings, parent of Berger International.
Marc J. Richards has joined Boston engineer Haley & Aldrich as a vice president. Previously, he was an associate and senior project manager at consulting firm Tighe & Bond.
Truck maker Navistar International Corp., Lisle, Ill., has elevated Chief Operating Officer Troy Clarke to CEO. He replaces interim CEO and Chairman Lewis B. Campbell. The sooner-than-expected transition follows what observers say was a disastrous engine-emissions strategy by former Chairman and CEO Dan Ustian, who retired last year. James Keyes, a 10-year Navistar board veteran and retired Johnson Controls Inc. chairman, will become chairman. The changes take effect on April 15.