In all jobs (and that includes sport), team bosses/managers are given targets to achieve. It would be interesting to know what targets Whitmarsh has been given. Is the aim to get a driver in the top 8 in the WDC or get a WCC finsh of 5th place. I'd love to know.
I'd find it hard not to believe that at a team like McLaren, the only target is to win both championships. Anything else is a failure. At the absolute worst, top 3.
Last year was a complete disaster for the team, and for that, Whitmarsh should go as ultimately he's responsible.