lead provider, lead generation from you as a client will very well determine the criteria that leads have to meet. In commercial organisations, people speak about lead generation. It is true, however, that a rigid, net number reduces the net number of leads. On the other hand, the salesperson goes only on the road with leads that are really interesting. Now it is not directly intended to abolish their own outside department, but the role can change a little. If the qualified leads come there first in, there can made a shifting for which salesperson within the lead organization is intended.
For your own organization, it is important to determine what a lead is and what an information request is. This you will need to tell the lead provider.