The theory of intelligent design understands living systems to be engineered systems.
The literature is looking at the same data that intelligent design proponents are looking at, making similar observations, and asking similar questions.
According to Michael Behe, his critics have managed to provide little more than hand-waving, smoke screens, and the sweeping of crucial problems under the rug.
An example of this devolutionary process on a showy scale? Flightless island birds, devolved from birds that could fly.
Rather than showing how their theory could handle the obstacle, some Darwinists are hoping to get around irreducible complexity by verbal tap dancing.