Sam Michael is in the spotlight as McLaren continues to struggle in the pits in 2012.
Williams' former technical director had to leave Williams at the end of last year as the beleaguered team restructured, and so he switched to McLaren to be sporting director.
But his new tenure got off to a difficult start in 2012 amid recurring problems particularly during crucial pitstops -- one of Michael's responsibilities.
The latest problem struck in Valencia on Sunday, with a failed front jack arguably costing Lewis Hamilton a shot at victory.
Telegraph journalist Tom Cary said that Michael, 41, "is coming under sustained fire" for McLaren's problems this season.
Several fans also took to social media sites to vent their frustration at McLaren.