Here is one burning question at each position on the New England Patriots offense heading into training camp.

The Patriots signed Stefon Diggs and Mack Hollins in free agency, and they used a third-round pick to draft rookie Kyle Williams. How Polk factors into the offense will be something to watch.

They also signed veteran free agent wide receiver Mack Hollins, along with making upgrades along the offensive line. There is no certainty that the recent moves will turn things around, but the ...