As a result of McKesson's business model it operates on thin profit margins, so in many cases the staffing model is lean and there are limited dollars to invest in infrastructure upgrades, product development or innovation. Due to the decentralized management structure of the company - beginning one level down from the executive team - there are challenges working across business unit lines to serve customers because the goals of the various units are not aligned so it is often difficult to gain support for cross-unit or multi-unit initiatives. There is not a lot of appetite for change or disruptive innovation at McKesson, so if you are an entrepreneurial type, you may find it frustrating to work at McKesson. If you are a high-driven and typically high-performing employee you may also find it frustrating to work at McKesson, where the risk-averse, non-competitive culture tends to reward maintenance rather than reform. If you need to operate in a progressive, energetic atmosphere, where there is an exchange of new ideas and new thinking, you may find McKesson too staid.