Not all of the moves they make over the next few months will be "blockbuster" quality. There are still depth positions to cover as we move forward.
As for Lewis, I think yes, the M's feel they have invested enough in him and haven't seen the payoff. Too bad about his injuries, but it looks like he won't be an every day OF going forward and we already have about 3 DHs on our roster, when we don't really want even 1. The team wants a rotation that uses the DH as a partial "rest" day for the starters.