4.5 star SP Livingston- 9-10-7, great success and a cheap contract.
4.5 star OF Button- 7-5-10-5-9, big power and great D.
Livingston would need a pitching prospect coming back, and Button I am not so particular about but an outfield prospect or a catcher prospect would be preferred (the talent demands for the return are obviously less than with Livingston, just a pretty nice 4.0 star guy or so for Button.)