ID was always a theory in search of evidence, Evolution is a theory that has shoe horned incomplete evidence into a entire system that is then demanded that complete belief be placed into.
ID is needed if only to sharpen Evolutionary Theorists work, the more ID demands “prove it” the more searching takes place.
"Well, there's your problem"
You're not supposed to look for the data that supports a speculation. The theory has to explain all the data you already have.