So as long as we're 10 games or so under .500 at the all-star break, we will probably/hopefully be sellers at the trading deadline.  If we do become sellers, we have several people we could trade to competitive teams for prospects.  If we did trade all, or at least some of them, would it really help us that much?  These are some of the people we can trade and how much I think they're worth:

Bengie:  I think he's the best hitting catcher in baseball at the moment.  Soto is cooling off somewhat, so I think that gives it to Bengie.  Bengie's under contract through next year, so he wouldn't just be a cheap half-season rental to make a playoff push.  He could help the next year, too.  He's pretty damn good defensively, and he is among the best catchers when it comes to calling games.  That also has to be worth something.  I'd think he has to be worth at least 1 A level prospect, maybe another B level to go with if we sent somebody else with him.

Randy Winn:  Not quite as valuable as Bengie, but he's still pretty good.  He's batting around .300 right now and his OPS is over .800, so he has some value as a hitter.  He would make a good #2 hitter.  He's a decent fielder, so that helps too.  He, like Bengie, is under contract through next year.  However, he makes a shitload more money than he should, so if we were to trade him, we would have to pick up some of the salary to get a good value out of him.  And he also has a no-trade clause that blocks trades to 10 teams, which I read in another thread include mostly the AL/NL Central teams.  But if we traded him to an East Coast team and picked up some of his salary, I think he'd be worth a B level prospect, maybe a couple C level.  And it would also open up RF for Schierholtz, who is tearing it up at Fresno right now.

Ray Durham:  He was competing with Richie Sexson for the title of worst player of the year last year, but he seems to have figured it out again this year.  He's batting a little over .300 after today's game, and his OPS is pretty close to .800, but his slugging percentage is a little low.  If he keeps up at his current pace and stays at .300, he could also make a good #2 hitter.  His contract also expires this year, so he'd be a cheap half-year rental.  I'd think he'd be worth one C level prospect, which isn't anything signifigant, but it would open up 2nd for Denker, Burriss, and co.

Jack Taschner/Vinnie Chulk:  Both are having good seasons out of the pen.  Tasch has an ERA  in the low 3's at the moment and Chulk has one close to 3.50.  Chulk's contract was only one year, so he's a FA after this year.  I have no idea how long we control Tasch for.  But with Chulk as a cheap half season rental for an okay reliever, I'd guess he's worth about 1 C level prospect, and Tasch, if he agrees to not shave his awesome mustache, could be worth maaaaybe 2. 

Keiichi Yabu:  Yabu's having a stellar season so far.  He has a 2.10 ERA.  He is a good reliever and he can go for several innings if needed, so he could be used for long relief.  He would help any bullpen.  He would be a half-year rental, though, as his contract was only one year.  But he also gets paid league minimum, so money wouldn't be a concern.  If he keeps doing as good as he is now, I think he could be worth a B level prospect.

And that's pretty much all we have to offer.  We could trade Sanchez or Correia, but I don't think they would wanna trade Sanchez and I don't think anyone would want Correia because he hasn't really played much this year because of his injury.  We can't really match a Mark Teixeira trade, but with Molina could we at least come kinda close?  And would it be worth it to trade Molina, or should we keep him to help our pitchers develop?  And are our other players as valuable as I think they are?