Lessons to be learned before the deadline

Ken Rosenthal

Essential truths we will learn before the non-waiver trade deadline at 4 p.m. ET on Thursday:

* Whether the Rays receive a good enough offer to justify moving David Price.

* If the Dodgers truly are serious about keeping top prospects Joc Pederson, Corey Seager and Julio Urias.

* What the Cardinals REALLY think of Oscar Taveras.

* How far the Yankees will go to reach the playoffs in Derek Jeter'€™s farewell.

* How far the Red Sox will go to tear down the team that won last year'€™s World Series.

* Whether Athletics general manager Billy Beane can do it AGAIN.

* How well Phillies GM Ruben Amaro Jr. can climb out of a box.

* If Tony La Russa is making a difference with the Diamondbacks.

* Whether the Pirates finally are all-in.

* Which NL East contender --€“ the Nationals, Braves and yes, the Marlins --€“ will decide most dramatically, "€œWe'€™re not good enough."

* Whether the Tigers can get another reliever.

* How rival clubs value White Sox trade candidates John Danks, Gordon Beckham, Dayan Viciedo and Adam Dunn.

* If Padres ownership is addicted to trades or willing to let the next GM move Ian Kennedy and Joaquin Benoit.

* How many holes the Giants can address at once.

* Which general manager will shock us all.