Mike Taylor (no relation), you seem to have this belief that other teams are just going to give away their best players for no freakin reason.
"Ben Zobrist + David Price for - 2B/SS Barney, C Navarro (if they're in playoff contention), OF Jackson, 1B Vogelbach, RHSP Struck (or Loux), and OF Silva (or IF Lake)."
How in the hell would this trade help the Rays?! I like how you only include Navarro if they're in playoff contention, which they'll totally be in if they were ever in position to trade Price and Zorilla. Let's look at this from a logical perspective (I'll go slow so you don't hurt yourself thinking)
Ben Zobrist - Average of 7 rWAR from 2009-2012, arguably TB's best position player
David Price - Average of 4.8 rWAR from 2010-2012, future $200mil Ace pitcher, arguably top 3 pitcher in baseball
Just right there, you're looking at ~ 12 wins that the Rays would be trading away JUST IN 2013, a staggering sum, valued at roughly $72 million in 2013 at $6 mil/win. If they're in a playoff race, that's impossible to give away. Over the rest of their contract, subtracting .5 WAR in 2013 for Zobrist and 1 full WAR in each subsequent year, and keeping Price's even since he's in his prime, this is what the value breakdown looks like assuming the trade is at the all star break (assuming: no Price extension is signed, $6mil/win, no inflation of value of the win or the dollar):
~3 wins from Zobrist for $2.75mil, ~3 wins from Price for $5 mil. Surplus Value: $28.25 mil
~6 wins from Zobrist for $7mil, ~5 wins from Price for $16 mil. Surplus: $44 mil
~5 wins from Zobrist for $7.5 mil. Surplus: $22.5 mil
Total Surplus: $94.75 million
What do you propose the Rays get in return? Multiple top 50 prospects? 8-10 legit prospects with one very good one headlining the deal? James Shields alone fetched a top-3 prospect and a top-50 SP prospect, and is a far inferior pitcher to Price, so you'd think they'd be getting a king's ransom for Price AND Zobrist
Darwin Barney - Average of 3 rWAR in 2 seasons as a starter
Dioner Navarro - Replacement level player, zero value, especially to a team with a top-2 defensive catcher in baseball already
Brett Jackson - Not a top 100 prospect anymore, floor is total bust, low ceiling, TB has Jennings already
Dan Vogelbach - Is like 3 years away from majors, not a top 100 prospect, especially as he's likely a DH only type
Struck - Almost completely worthless, ceiling of an inning eating 5th starter (same for Loux)
Silva - non-prospect, cannot take a walk, little-to-no power. Lake is a decent prospect but has yet to turn loud tools into baseball skills
Victor Wang has done some great research into the value of prospects here, and history has borne that, while teams are not running precisely on his numbers, he's in the right ball park, so I'll be using his numbers here to demonstrate the value in your deal.
Barney is, realistically, a 2.5-3 win player now at age 27, and is under control through 2016. At 3 wins at age 27 & 28, 2.5 at 29, he's worth $57 million (and only if you buy the lofty defensive numbers he's posted). During that time, he'll likely make around $15 million (gold gloves are worth a lot in arbitration), so he's a surplus of $42 million. Navarro isn't worth anything. Jackson is a B- prospect, so he's worth ~$3mil. Vogelbach is a B prospect, and worth about $5mil. Struck and Loux are old C prospects, so worth ~$1.5mil. Silva has no value. Lake is a C+ prospect, so he's worth about $1 mil.
Your deal's surplus value? $52.5 million. There's a $42.25 million dollar balance in favor of the Cubs, and that's assuming Price signs no extension and Darwin Barney is the best defensive 2B in years. It also ignores that quantity over quality is not something teams are a fan of. Your deal is so insanely far off that teams would boycott the Cubs front office if they ever presented that deal to the Rays.
What would look like a good deal for Zobrist+Price, assuming no extensions?
Barney - $42 mil surplus (this figure, the more I think about it, is absurdly high. Not because Darwin isn't a 3 win player, but because it ignores that teams pay much less for defensive wins than they do offensive wins. I'd probably bump Darwin down into the $20 mil maximum just based on what he'd probably get as a FA right now, but I have to play by my own rules)
Baez (Top 11-25 prospect) - $25 mil
Amora (Top 25-50 prospect) - $23.4 mil
Vogelbach (B Hitter) - $5mil
And that's without considering how much teams value the right to sign Price. For a team like the Cubs, the money is almost not a concern compared to how big of an opportunity it would be to get a top-flight starter on-board. How much is that worth to teams? $25 mil? More? If so, you're throwing Jackson, Lake and others into the trade too.
A trade for Zobrist AND Price would be prohibitively expensive in terms of prospects. That trade up there is only valid if the Rays like Barney, too, which there is no guarantee of. If they don't, Jackson, Lake, Acantara, and many, many others would have to be thrown into the mix as well