Final answer:
Lean principles aim to cut costs and reveal inefficiencies, and may indirectly lead to revenue increases. However, lean does not directly improve financial investments.
Step-by-step explanation:
Lean principles focus on eliminating waste to improve efficiency and value delivery in business processes. Cost savings and uncovering problems are direct benefits of lean since they are explicitly targeted by lean methodologies. Income increases may result indirectly from the improved efficiency and customer satisfaction due to lean practices. However, improved financial investments are not a direct consequence of implementing lean, as lean does not specifically address financial investment strategies. The main goal of lean is to streamline operations, rather than guiding financial investment decisions.