Release the IGE or establish a project magnitude for all actions.
This is ONLY a good idea if the Government expects competition. If the Gov only has "y" funding for project "x", why not be honest with the contractors and let them know that information. I have not seen a logical argument against this policy expect from the creators of IGE's that do not want their pride hurt!
Deor Baker commented
The IGE can help Industry understand the project scope. Could be used more.