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A final area to consider, when thinking of trading the guy who is the face of the franchise, is what the team will look like without him.
What will Arizona have to compete with?
Any players received in a trade will be left out, as there are numerous trade possibilities and it is impossible to determine what each will be, but more than likely the deal will include a starting outfielder or an outfielder ready to be called up.
Current position players most likely to be around include the following: Aaron Hill, Jason Kubel, Paul Goldschmidt and Miguel Montero. Others will stick around, but these are the key guys the Diamondbacks will look toward for offensive production.
Aaron Hill has been the best second baseman in the national league, despite his missing invite to the All-Star game. Hill is batting .297 with 13 home runs, 47 RBI and 53 runs scored. He has been nothing less than exceptional since Arizona traded for him and he will be a key part of next year's team.
Jason Kubel was a questionable signing this offseason—it was believed the outfield was set. No one knew that Kubel would become the power in the lineup and have an MVP-caliber season. Kubel is batting .281 with 23 home runs and 73 RBI.
Kubel will be a Diamondback next season without question, but with only one year left, Arizona will have to decide soon if he is worth extending or if he will be next year's hot trade topic.
No matter what happens to Kubel, Paul Goldschmidt will be a Diamondback for a long time. He is batting .304 with 16 home runs and 55 RBI. He has become the key player Diamondbacks have lacked for most of their existence.
Last, but certainly not least, is Miguel Montero. He is one of the best defensive catchers in the league and his .280 average with 13 home runs and 64 RBI shows he is no slouch at the plate, either.
Any team would be lucky to have three of these guys, let alone four, giving Arizona substance if Upton was traded.