Don't like it at all, is Robertson really going to be more effective than Appel?
Giving up a potential starter in two years for a middle relief rental is stupid.
The Marsh deal I understand, top prospect two years away who is blocked for a former top prospect who can help now and in the future.
This one gets a big thumbs down.
PS; Robertson already has 5 blown saves this year, so you don't even want to use him past the 7th inning.