How corporate incentives are aligned will also define the trajectory. The person who is going to take the call whether to go for vibe coded tool or external vendor has to have enough incentive to put this neck on the line.
Imagine this, you are VP of finance. You know you can get a nice tax calculator built quickly using vibe coding, but will you put your neck on the line and say, let's replace the existing vendor and use my vibe coded tool. You might fired if you send a wrong tax report to your auditor.
Let's take another example - VP of sales wants performance report and visuazliation of the sales team. He has 200 BDRs. The daily sales standup depends on this report, team gets yelled at or praised basis this. Now, will this VP be willing to put his neck on the line and say - let's use my vibe coded report and discard the existing SaaS. Even if such a report feels trivial, it is vital for functioning the sales team and hence, it needs to be reliable.
I think vibe coding will work at prototype level - the trust gap is very huge right now to even consider it for internal tools.
And, until vibe coded tools are stress tested enough this trust gap will not be fulfilled. Think about this, why some of the biggest companies in the world still run on softwares built in 2000s.