Building culture is hard, sustaining it is harder
I experienced first-hand what it was like to work in a company with a really strong culture of knowledge management, and watched what it took to build and sustain it. I also witnessed the factors that caused it to eventually crumble.
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My current company is struggling with some challenges that are pretty typical for a wildly successful startup that's rapidly grown into a medium-sized company. We've got the expected technical debt, organizational design challenges, and a seemingly infinite number of small systems that work great... until they catch fire as we hit new scaling thresholds.