The Five Biggest Questions the Chiefs Must Answer to Three-Peat!

The Chiefs will face challenges on and off (already have) the field... but what are the five biggest questions the Chiefs need to answer to win a third consecutive championship?
Jeffri Chadiha (NFL Network/NFL.com/@JeffriChadiha), Sam McDowell (Kansas City Star/KCStar.com/@SamMcDowell11) and Soren Petro (Sports Radio 810 - WHB/810whb.com/@SorenPetro) each give their list of five questions that must be answered in order for the Chiefs to be the first team in the Super Bowl Era to win three straight championships.
Rashee Rice situation.
What's the answer at LT?
Do they have enough depth on defense?
Is Isiah Pacheco enough at Running Back?
Can Dave Toub master the new kickoff rules?
Does Travis Kelce have enough left in the tank?

[@Suprafan69]

With the way Jared Wiley is looking I think he could make up for Kelce's decline if he has a decline

[@nickim6571]

I have to disagree about Kelce. He would have EASILY had another 1000 yard season last year if he hadn't missed two games. If he can avoid injury, there is no reason to think he won't have 1000 yards this year.