[k__]

This reads like they tried to replicate 100% of the features in a big monolithic application, which is rather time consuming. :\

When I start a rewrite I check which are the essential features and try to iterate my way to 100% (sometimes the 100% aren't even needed) with many small releases, but every executive fears "rewrites" like the devil....

[judk]

Sadly, this often leads to a 50% rewrite where key features are missing because I he rewrite team ran out of budget or willingness to code the non-fun parts. Which drives users to misery or competitors.

[k__]

True story.

But I have the feeling, that a prio-list of the needed features is all that is needed.

People say what they need, you implement it, done.

I mean the way other companies steal your customers IS that they implement a better version of stuff you did. So it's either, they do the rewrite (in their case a first write) or you.