Protection against theft of managers in a web-studio

Question

Project management

How to protect a small web-studio from draining clients by managers?
Suppose a manager, knowing that the development of a site costs 50,000 rubles, takes an order and "carries" it not to my company, but quietly merges it for himself. For example, he finds a small freelancer and does it for 10k, and puts the remaining 40k in his pocket. (Numbers are purely for example, to convey the essence)
How to protect yourself from this? What's the best way to get the job done in the most "safe" way?

Answer 1

If clients still think that a company is working with them, and not some leftist freelancer, keep track of all applications, because all the same, technical specifications or some first questions should be sent to the mail. Or is someone just talking over the phone? Accordingly, the dishonest manager will have to report that they refused. Well, you call in a couple of weeks, they say so and so, we conduct a survey, which did not suit. If they say that it’s like that, we are working with you, then fire the manager. True, the client may leave you, he will say that you do not check your employees.

Answer 2

Fire all managers, leave one. When the new staff arrives, the only remaining manager will tell the new ones that the previous ones were fired for stealing.
And given the fact that there are a lot of managers in the labor market, you can do such a trick at least every 2-3 months.

Answer 3

Look for honest workers, they are few, but they are.

Answer 4

If everything goes through the mail, then all the data is stored in it.
Listening to work phone

Answer 5

You must have a curator, someone from higher management who is indirectly involved in the process of initiating, evaluating the project. All project evaluations are only in a documented form and only through mail with distribution to the right people (manual). And all the verdicts on the "return" of the client only in the presence of the persons of the curators.
Mail must be corporate. So that in the event of proceedings, you have access to correspondence and logs. The same calls, not on some kind of mobile phone on a corporate account, but through SIPs. Fortunately, you can put phones and softinka. And the negotiations should be recorded and stored in archives for a couple of months. What, again, in the case of a showdown or "control sample" could be checked.
The curator knows the day and even the time when there was a discussion,