If you will pardon my use of stereotypes, historically the credit risk officer has been the fellow who always says “no” because it is the conservative thing to do, while the financial modeller has been the proponent of active-trading strategies that fulfil the promise of a data-mined efficient frontier that has been estimated to several decimal places of precision.
The logic of risk and return in a competitive marketplace, as measured by return on economic capital that is founded in empirical analysis, has provided both sides with a common language and set of standards.