[btschaegg]

Not to dismiss your point, but I'd like to add that simply adding an "acceptance criteria" section to all tasks also isn't a solution.

I've just recently encountered a ticket from a certain person that does this all the time. The problem is that their criteria still only describe the solutions they imagined themselves, which are often… very suboptimal.

In the end, what you want is someone who is capable and willing to properly root cause a problem and weigh multiple possible solutions against each other. If nobody does this, no amount of superficial process will help you.