By Matt Hladik Through the first 13 weeks of the 2021 season, Kyler Murray and the Arizona Cardinals were 10-2 and in the running for the No. 1 overall seed in the NFC. After that, the wheels fell off. Arizona lost four of its last five regular season games and then was non-competitive in a wild card loss to the Los Angeles Rams. In the last three seasons with Murray as their starter, the Cardinals have improved from 5-10-1 to 8-8 to 11-6. However, they still have one more step to take: become a true title contender. Murray seems to understand the reality of what needs to be done, based off hi…