As you grow, redundancy, sustainability, and reliability (of systems and people) all become more important than continuing to wear the extreme lean badge of honor. Investing in a pipeline of junior talent, giving your senior engineers time to coach and mentor those juniors, and slowing down your cadence to give everyone room to breathe in those new processes likely leads to a more successful company. It certainly leads to a more sustainable pipeline of talent moving up the ranks from junior to senior and beyond.