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Comment by Swizec | Hacker News Reader

> For teams that don't have a good PM, you also need a tech champion

Yes. And to add some nuance, you need a [trusted] engineer who can say “This will take 3 weeks because of tech debt items A, B, C. We can fix those in 1 week and then take 1 week to implement this. How would you like to proceed?”

Any decent PM will take the 2 week option that also cleans up the codebase.

But if fixing the tech debt would take 3 weeks and then another 2 weeks to build the feature, then any decent PM will take the option that doesn’t fix tech debt unless there’s a bunch more stuff coming in this area in which case taking 3 weeks to fix stuff is totally worth it.

Their job is to make those tradeoffs. Our job is to highlight the tradeoffs they’re making so they can make informed decisions.

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> “This will take 3 weeks because of tech debt items A, B, C. We can fix those in 1 week and then take 1 week to implement this. How would you like to proceed?”

I've experienced something like this, but only on a project that mostly had the original team that built it (including me) still working on it. We were able to keep things in check, and in the above case would just do it that way without really asking.

On many other projects I've been involved in, there's years of tech debt that has accumulated: the typical retrospectively incorrect design decision, followed by layers and layers of band-aids, each time making the real fix more complicated and a bigger scope.

These things undoubtedly increase the cost of everything else, but it's really hard to articulate. The fixes take weeks, the break-even won't come until months later, the long-term team members are a mix of skeptical and defensive of their work (eg: don't want to do the real fix). In some cases, there's a war story "we heard that about x, but that caused so many bugs we had to revert and abandon it, why is this going to be different?"

Any tips for anyone working in this environment?

Those are easy calls for which everyone's incentives are aligned.

The problems come from the calls where personal incentives are not aligned. A typical example - the team builds a feature hidden by a feature toggle which is, after a period of A/B testing, enabled globally on the product.

The existence of the feature toggle raises the complexity of the code - let's say it's used in 10 different places, each of those double the amount of possible code paths. Removing it may be a question of a couple of hours of work and is very clearly work paying for itself in the long term, but PM will not schedule this work, because there's no immediate upside for them personally and the cost of keeping the toggle in code is a long term one, spread over the whole organization.

In other words, PM is more likely to get a bonus by slashing work on such tech debt items (and thus them personally delivering the features faster) rather than punished for keeping the toggles/complexity behind.

I agree with you completely that you need trust.

> Our job is to highlight the tradeoffs they’re making so they can make informed decisions.

This is an oft-stated thing that I oft-disagree with. It states that engineers ought to be subordinate to PMs, which shouldn't always be the case.

If you have shit engineers and great PMs, the best outcome is likely to shift decision making to PMs. If you have great engineers and shit PMs, decision making should shift towards engineers.

If they are both equivalently shit or great, it should be a balance. I believe this is the most likely scenario. I believe that balance is thrown out the window if engineers "highlight the tradeoffs" while the actual decision making is lies with the PMs.

How to actually achieve balance is extremely idiomatic to the team and organization. It's hard to get people to have adult, non-confrontational discussions about this sort of thing, however. Too many people will treat it as a negotiation.

> This is an oft-stated thing that I oft-disagree with. It states that engineers ought to be subordinate to PMs, which shouldn't always be the case.

I think of it more as a partnership.

If I’m in charge of getting groceries and you’re in charge of budgets, we need to have an informed discussion on what exactly is our budget and what food we need so we don’t starve. Sure I could blow the whole budget on steak and I might even love eating nothing but steak for 3 days, but eventually some carbs would be nice. Likewise neither of us will be happy if I go max stingy and buy nothing but bags of rice for the week.

The reason I think PMs should make the final call is not that engineers are subordinate, it’s that PMs are accountable. (RACI – responsible, accountable, consulted, informed). The person whose ass is on the line makes the call.

Usually when I ask engineers if they want to be accountable for making the call (and its outcome), things get real quiet real fast :)

If PMs are accountable, then I'm with you. Decision making should lie with those accountable.

From what I've seen, accountability doesn't mean much. Could be the places I've worked. Poor PMs get promoted despite running projects into the ground, good engineers get held back despite pushing through adverse project plans, vice versa.

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