So... if you spend $3m to replace a $1m team... you are betting on that $3m cost coming down. It's a proof of concept. The first step is to find out if agents can do the job at all. At this point you are hoping future versions will get more efficient.
Trying to make something efficient before you know that it is even possible is hard.
Drop-in, profitable on day-1 isn't what the frontier looks like.