Remarkably few. One, because HubSpot is willing to take risks on people and helps them move up the ranks, people sometimes do get promoted before they're ready for it. There's nothing more demotivating than a bad manager, and I've seen entire teams underperform for months while a bad manager is either coached or replaced. I'm not sure there's an easy fix here. On the whole, it's a good thing that HubSpot gives those people those chances. There probably needs to be more guardrails and mentoring around this to identify where a newbie manager is potentially having cascading negative effects.
Second, and this one is some tough love from me, but it needs to be said: You need to toe the line on some things. If you're politically conservative, keep it to yourself. If you're liberal, preach it from the rooftops. HubSpot, for all its diversity and inclusion efforts (which are admirable!), does not allow for certain political viewpoints to be shared at all, and certainly not respected. On the one hand, it's not surprising that the majority of the company is more liberal. However, the Women@HubSpot and LGBTQ Alliance use Hillary Clinton campaign slogans in their "official" materials. I get it, I'm solidly liberal, and I don't think it's done with any sort of malice, but I've seen people basically shouted down and degraded for expressing any view that isn't solidly on the left side of our political spectrum. I know a few conservative folks at HubSpot, and I know for a fact they fear for their careers to even engage in debate on certain issues. It's never good for anyone to feel silenced, and in this manner, it's happening here. It's a glaring dark spot on HubSpot's supposed openness, and it needs to change. I am sure that it will in time, but it's something to be aware of if you are in that set and are considering HubSpot to work for right now. Hopefully in a few years, this won't be the case.