It happens often when question goes through 'occupation boundaries'. Eg you are manager (judging by 'my experience is with SWEs') and you ask 'simple' direct question from swe "can you implement this feature". And instead you get wall of text. Which might be frustrating, but is it SWE to blame?
Really?
I hate long discussions so I try to answer my questions as succinctly as possible. In this case, if I think I can implement, I'll simply say yes. If not, I'll say no and give the reasons why.
I guess I'm out of my depth?
I find a correlation actually where people who struggle to give clear answers/explanations, struggle in their own decision-making. They get ensnarled into ever-deepening details and can’t cut through them to make actual progress.
But some people struggle to collect their thoughts clearly, and struggle to articulate simple answers to even the simplest of questions. I have seen this, and seen how detrimental it is to their effectiveness as engineers and teammates. My approach is to actively coach people on my team that I see with poor communication.
And it's a valuable skill that I'm advocating. When an engineer is invited to a VP presentation, and the VP asks "Has this feature launched?", you better believe they don't want a 3-minute ramble of the challenges they faced, or what they'd do differently, or whatever. They want to know: "Has. This. Feature. Shipped?"
In your example, I imagine that the engineer is trying to be seen as still worthy of employment despite not shipping a feature. That motivates them to show themselves as:
- Able to overcome some challenges.
- Able to learn from mistakes.
This is a self-reenforcing cycle. An engineer who struggles to make decisions will struggle to deliver at pace. An engineer who struggles to delver at pace will have more experiences of getting fired. An engineer with more experiences of getting fired will be more fearful and thus struggle more to gather their thoughts and communicate clearly.
The only solution I know of is more secure professional relationships such as with a coach such as you’ve been acting as.