0 out of 10Jeffrey Phelps/Associated PressThe NFL offseason can be a time of optimism. Each team is undefeated. The excitement only increases with the addition of big free-agent players and rookie draft picks. Many teams look better on paper and some of the new players seem like Pro Bowlers.There are always losers, even though there are winners. One team may land a valuable prospect but another team might not. Each time a player steps into a starting position, another will likely lose him. Although the offseason isn’t over, and there are still many issues to resolve in training camp and on the field, it is possible to get a better idea of which players and teams, coaches, and fanbases have more reason for optimism than others.We'll be looking at the biggest losers and winners of the 2021 offseason. We'll be looking at five players from each side of the spectrum, and we'll dig into their current position heading into training camp.