Wait- a 29 year old can improve ?
Much more likely that a 29 year old BP arm with a 97 MPH turbo sinker improves than it is likely an injury prone LHer stays healthy and a nearly 37 year old BP arm doesn't explode.
Giles is just pimping a move made by the Nats, as usual.
The A's gave up 2 fairly risky BP arms that are pitching well NOW for a younger, cheaper, healthier guy that will probably be more valuable in the FUTURE.
In other words, exactly what rebuilding teams should be doing.