When do we learn from billion losses?

When the Dansih police now scrap the project Polsag it is a repetition of several public scandal projects with the following baking recipe (for free use):

1. In order to manage the supplier this time we specify the system even more precisely than we have ever done before
2. We send the contract (for we must in the EU) to get the cheapest price
3. Suppliers give offer that barely make any profit for them
4. We choose the cheapest supplier (for otherwise there will probably be ballad)
5. We begin
6. We become wiser about what we really should have asked for from the start
7. We get expensive offers on the changes, for now, the supplier must have the profits home
8. We get annoyed about the prices and cooperation becomes strained
9. Independent consultants are called in for advices like ‘better management’ and ‘tight control’ with no practical usefulness at all
10. Now repeated steps 6 to 9 in a few years until everyone is so tired of everything and the budget is blown up many times that we continue to step 11
11. We cancel the project, find somebody to blame and start a new project in Step 1