Trade Matt Holliday for who?!

I am in a 16 team dynasty league and I was offered the following deal:

I give Matt Holliday (1 year)

for

Jordan Lyles (4 years) and Danny Duffy (4 years)

Here is the predicament. I really like the young SPs that I get in return, especially since Holliday is gone after this season. I could add Lyles and Duffy to Miller, Moore, Haren, and Luebke....not bad! That being said, I have another deal that would trade Joey Bats for various players including Lawrie (so I get some power/speed back). But can I afford to lose Holliday? I have Ramos, Cano, Ike, Delmon Young, Swisher, Harper, "Lawrie - assuming the deal goes through the league's voting process, for this scenario let's say he does".

So I guess the question is would you do the deal? I like it, but the loss of power is a concern.