There is a fairly straightforward formula for career success: hard work and delivering a high performance. As most professional organisations refer to meritocracy as how their best people are promoted, the focus is then simply on the results each individual delivers. Or is it? While this may certainly be the case in the earlier stages of a career, the success formula becomes more opaque, more complex the more senior you become. Many observers in business give this phenomenon a bad name - 'office politics' - it's all about who you know and not the great job you do.