Often enough, the team starts with, ‘We’ve slacked off on testing. We didn’t know better. How can we fix it?’ in some variation.
The fact is that they have not been careless; they have intuitively made smart, business-driven tradeoffs.
Allow me to explain this statement. Figuring out what your testing strategy is is not a simple matter. There are excellent resources out there that provide guidelines, but unfortunately, these are usually presented as the approach everybody should take. In my experience – assisting 45+ products of all sizes in the last five years – there is no silver bullet or playbook.