Why can't you? What's to say that there won't be a highend tele-robotics with haptic feedback that comes out in a couple of years? One can come up with ridiculous sky is falling scenarios with nearly everything. Why bother with internal medicine? You could just enter stuff into Watson, pick the most likely diagnosis and follow the algorithm. Anesthesiology? OMFG, CRNA and AA. Primary care? PA, ARNP, FMGs. The list goes on and on. The people who talk about the outsourcing are the same people that have no true concept of what is involved with radiology, including the procedures and direct interaction involved.
Outsourcing is dependent on multiple things including the hospitals seeking it out, finding people over there, having doctors suddenly stop coming to the radiology department, having radiologists stop doing biopsies and other procedures, the countries with the outsourcing creating a large enough number of radiologists to meet the demands of an entire country in addition to their OWN needs, etc. If you think India wouldn't start restricting things on their end when local radiologists start ignoring patients over there, you'd be crazy. There is a growing population with an ever increasing demand for imaging studies.
All specialties go through ebs and flows. 50-80 open spots isn't much when you think about it as about 1 person out of every 2ish schools decided against going into a specialty that most of us get little exposure to during third year.