Resistance to change. The company is still stuck in the old ways for working and this is a major issue in product delivery. Ex: still using excel to track backlog, priority and roadmap instead of using tools like Rally or Jira.
This is just 1 example, if you are coming from an IT organization then one might feel that you are using decade old process and SOP.
The current market has evolved where been agile is the key to be successful and deliver on ever evolving market demand but here the love for waterfall model is whats holding the business requirements to be pushed to the market