It isn't a role change, its like changing a GR1 into a GR4. We only have 3, due to a lack of cash. We reap what we sow.
The relatives of any squaddie stuck in the desert should complain to their MP, or write to the Sun. The AT fleet is now the busiest operational fleet in the military. (So busy that they have no TELIC Battle Honours due to late submission of 540's - I kid you not)