Bombardier has replaced its head of marketing for commercial aircraft, including the slow-selling and still-grounded CSeries airliner, as it continues a corporate restructuring and downsizing.

Ross Mitchell, previously in both business and commercial aircraft sales at Bombardier, has replaced VP-commercial aircraft marketing Philippe Poutissou with immediate effect.

Bombardier has also named company veteran Jean Seguin as president of the Aerostructures & Engineering Services business formed in July when the company split the unit off from its Business and Commercial Aircraft segments.

Poutissou had been head of commercial-aircraft marketing since 2008. Mitchell was most recently regional VP-sales for Europe, but was previously director-international sales for commercial aircraft from 2000 to 2011.

In December, Bombardier’s head of sales for commercial aircraft, Chet Fuller, left and was replaced by Raymond Jones, who had been in business-aircraft sales since 2003. Fuller had been hired from GE Aviation in 2010.

Bombardier announced a number of potential sales of the CSeries at the Farnborough Airshow in July, but firm orders still stand at only 203 aircraft. The flight-test program has been grounded since an engine failure on May 29.

On July 23, the company announced a reorganization intended to streamline management that included Bombardier Aerospace president Guy Hachey retiring after the segment was broken up into three business units, each reporting directly to CEO Pierre Beaudoin.

Business Aircraft continues to be led by Eric Martel and Commercial Aircraft by Mike Arcamone. The new Aerostructures & Engineering Services business, now led by Seguin, will market Bombardier’s ability to design and build complex structures to the aerospace industry.

Sequin joined Canadair, later acquired by Bombardier, in 1981 as a composites engineer and was most recently vice president of quality, engineering and manufacturing.