Over the last few years, the San Diego Padres have never been shy when it comes to making trades. Whether this means the team adding talent or sending guys out, the Padres have been aggressive in roster building. However, this year the front office has taken a step back in terms of adding, especially within the starting rotation. The starters are easily the biggest problem for the Padres right now, and the lack of consistent, reliable arms has already reared its ugly head early in the new year. San Diego could always look to make a trade down the line to add another pitcher , giving itself a better chance to win. But one pitcher has been mentioned as a possible trade chip in a surprising twist. Padres' Nick Pivetta Named Trade Candidate MLB writer Zachary Rymer of Bleacher Report recently named 10 top trade chips around baseball, and right-hander Nick Pivetta was mentioned. Rymer makes the claim that San Diego could look to move the pitcher to shed payroll ahead of the upcoming sale of the team .…