Fred Zinkie: I would choose Duffy, because his role is more secure.
Question: @VicVail Should I trade Dee Gordon and Patrick Corbin for Robinson Cano, Dexter Fowler and Trevor Rosenthal in a 14-team keeper league?
Zinkie: Yes. Nice discount on Cano, and you get two solid assets with him.
Question: @JMcD317 Who would you rather have on your team, Gregory Polanco or Carlos Santana?
Zinkie: I prefer Polanco, who could swipe 40 bases this season.
Question: @dinsua Do you think it is smart to drop Doug Fister or Joakim Soria for Matt Moore, who will soon come off the disabled list?
Zinkie: Stick with Fister and Soria. Moore may not hit the ground running in his return.
Question: @Waittilthisyear Should I trade Gerrit Cole for Jordan Zimmermann and Jeff Samardzija?
Zinkie: Yes. As great as Cole has been, you are getting two good pitchers who should improve this summer.
Question: @Deyowell Should I trade Michael Brantley for Jake Arrieta and Kole Calhoun? It is a deep 16-team dynasty. I have Ben Revere and J.D. Martinez in my outfield right now.
Zinkie: Yes. Arrieta is an ace, and Calhoun is a consistent asset in a deep league.
Question: @scubafanatic Should I trade Giancarlo Stanton for Matt Harvey and Noah Syndergaard?
Zinkie: As good as those pitchers are, they aren't enough to trade away Stanton.
Question: @MikeDellDQ What should I do with Robinson Cano on my fantasy team?
Zinkie: His value is too low to trade him. Bench him in most leagues.
Question: @hrmiller24 I just got offered Byron Buxton for Anthony Rendon in a keeper league. Should I take it?
Zinkie: Tempting offer, but I would stick with Rendon. He was great last season can be used at a scarce position.
Question: @b_lane19 Which player is a better option for my corner infield slot -- David Freese or Carlos Santana?
Zinkie: Freese has been better than expected this season, but stick with Santana.
Question: @CowboysCEO86 Is Joc Pederson for Byron Buxton a good trade? It is a keeper league.
Buxton is last round keeper.
Zinkie: If the keeper cost for Pederson is also late, stick with him. If not, go with Buxton.
Question: @Bird_son007 Should I give up Xander Bogaerts and Yasiel Puig for Brett Gardner, Brandon Phillips, and Nolan Arenado?
Zinkie: Yes. Gardner is underrated and Arenado is excellent.
Question: @IronMetalRoses Do you think Hector Olivera will take over third base for the Dodgers? Who is a better stash, Olivera or Miguel Sano? And who should I drop out of Carlos Santana or Kendrys Morales?
Zinkie: In my opinion, Sano is the better stash. But I wouldn't drop either of those veterans for him.
Question: @kelv_tran99 Is Collin McHugh worth a pick up in a 10-team points league despite his struggles?
Zinkie: Leave him on waivers and use your last roster spots for streaming in shallow leagues.
Question: @cumondad Should I drop Michael Pineda?
Zinkie: Definitely not. This is a rough patch, but he should be retained in all leagues. Can be benched for now.
Question: @jgordon13524 Should I acquire Brian Dozier for Freddie Freeman? I have a lot of first baseman and I need a good second baseman.
Zinkie: Definitely a good trade. Freeman's current injury is concerning and Dozier is a great asset.
Question: @dyl_picks Who is a better play going forward Billy Burns, Steven Souza Jr., or Jorge Soler?
Zinkie: Very close between Burns and Souza. Base your decision on your category needs.
Question: @DGravid Is it time to drop Robinson Cano?
Zinkie: He can be dropped in shallow leagues, if you have an attractive option on waivers. Otherwise, stick with him for now.
Question: @Keith_Stoned In a total points league, is Byron Buxton worth a roster spot?
Zinkie: He is less valuable in points than in roto, but he is worth a roster spot in all formats (especially if he continues to hit leadoff).
Question: @SouthPawProwess Which shortstop-eligible player has more fantasy value the rest of the way: Brock Holt, Marcus Semien, or Matt Duffy?
Zinkie: Despite his recent slump, I will take Semien. Duffy in second place. I like Holt, but the uncertain role hurts his value.
Question: @Derek9713 Should I drop Chris Heston or Stephen Strasburg and pick up Nate Karns?
Zinkie: Dropping Heston for Karns is fair, if Heston is your worst starter. Don't drop Strasburg, who could have great second-half value.
Question: @Prl556 I need to pick up an outfielder. Ben Revere, Randal Grichuk, and Chris Colabello are available. Who do you think is the long term best option?
Zinkie: Unless you are already set with steals, Revere should have the most long-term production. I would put Colabello second.
Fred Zinkie is the lead fantasy baseball writer for MLB.com. Follow him on Twitter at @FredZinkieMLB.