BROCK PURDY, quarterback: This one is obvious. Purdy needs to take care of the football and be a distributor, making the right decisions and taking advantage of all his playmakers. He’s done that for most of the season, although he had four interceptions against Baltimore and has been somewhat hit-and-miss during the playoffs.
NICK BOSA, defensive end: The 49ers already are planting the seed that the Chiefs hold on the offensive line and, in truth, that has been a problem at the tackle position for Kansas City. Bosa is a dangerous pass rusher, and the Chiefs will need to account for him at all times. He’s fast enough to catch Mahomes.
JAKE MOODY, placekicker: Moody was a controversial pick in the third round — early to take a kicker. He has had a decent rookie season, although he has missed two kicks in the playoffs. He also missed a 41-yarder that cost San Francisco the game at Cleveland. Key for the 49ers is to make sure he’s kicking extra points, not field goals.