I find the "business" side useful, but I have to question whether those who are supposed to be giving learning support in on the job training are prepared for it. It reminds me of those that come out of the university as "experts" in the field are expected to be able to pass on that expertise without any training in teaching or instructional methods. Because they "know" the material does not mean they can support learning the material.

That is one advantage to this model. T&D would need to recognize that more training (for those that are expected to support the learning on the job) may be needed on the business end.