Companies stagnate when their leaders stagnate
leowid.com
leowid.com
I've also heard similar tones with self-help books on management I've read. "Are your actions inspiring a different behavior than what you're asking for?"
I wonder someone using the phrase "Do as I say not as I do" could best exemplify when this has become a major problem
1. Companies stagnate when their market isn't growing.
2. Companies stagnate when competition is increasing in the market.
You can be a shitty leader and still succeed massively despite yourself.
Maybe the title needs a slightly weaker claim:
Companies CAN stagnate when their leaders stagnate.