A method and system for adapting an Information Technology (IT) structure to maintain service levels. An IT structure is deployed in an IT delivery environment. A service level associated with the IT structure is specified. At least one operational characteristic of the IT structure corresponding to the specified service level is identified. For each identified operational characteristic, a corresponding threshold is established in such that if the corresponding threshold is violated then the specified service level is not sustained. After establishing the thresholds, operation of the IT structure is monitored. The monitoring detects a condition wherein a measured value of a first operational characteristic has violated the corresponding threshold associated with the first operational characteristic such that the specified service level is not sustained by the measured value of the first operational characteristic, causing degradation of the specified service level.