The OKR leadership model, which is particularly popular with start-ups, is quickly explained and easy to understand (or so the theory goes). The company defines a mission (objectives) and then defines milestones or key results to achieve the company’s goal. Simple to explain, difficult to implement!
The difficulty for most young companies and start-ups is not to lose focus in the initial phase and not to be distracted from the goal while building up the learning curve.
We recommend a very good book on this topic that explains the path and implementation of OKR in a practical way using a fictitious start-up.