By Matt Hladik There’s no reason to change what worked yesterday if you’re the Carolina Panthers. Carolina was able to beat the Tampa Bay Buccaneers 21-3 behind stout defense and a strong performance by quarterback P.J. Walker, who was making his second start of the season. Walker, who threw for 177 yards and two touchdowns, will make his third start this coming weekend. Panthers interim head coach Steve Wilks announced today that the 27-year-old signal caller will remain the starter even if Baker Mayfield and Sam Darnold are healthy enough to play. Walker made one start in each of the last tw…