IMO the split, although good (the pattern is "sacrifice one person" as per Coplien/Harrision's Organisational patterns book [0]), is too drastic. It should be not defense vs offense 100% with a wall inbetween, but for each and every issue (defense) and/or feature (offense), someone has to pick it and become the responsible (which may or may not mean completely doing it by hirself). Fixing a bug for an hour-or-two sometimes has been exactly the break i needed in order to continue digging some big feature when i feel stuck.
And the team should check the balances once in a while, and maybe rethink the strategy, to avoid overworking someone and underworking someone else, thus creating bottlenecks and vacuums.
At least this is the way i have worked and organised such teams - 2-5 ppl covering everything. Frankly, we never had many customers :/ but even one is enough to generate plenty of "noise" - which sometimes is just noise, but if good customer, will be mostly real defects and generally under-tended parts. Also, good customers accept a NO as answer. So, do say more NOs.. there is some psychological phenomena in software engineering in saying yes and promising moonshots when one knows it cannot happen NOW, but looks good..
And the team should check the balances once in a while, and maybe rethink the strategy, to avoid overworking someone and underworking someone else, thus creating bottlenecks and vacuums.
At least this is the way i have worked and organised such teams - 2-5 ppl covering everything. Frankly, we never had many customers :/ but even one is enough to generate plenty of "noise" - which sometimes is just noise, but if good customer, will be mostly real defects and generally under-tended parts. Also, good customers accept a NO as answer. So, do say more NOs.. there is some psychological phenomena in software engineering in saying yes and promising moonshots when one knows it cannot happen NOW, but looks good..
have fun!
[0] https://svilendobrev.com/rabota/orgpat/OrgPatterns-patlets.h...