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Is Multiple Linear Regression appropriate for this?

I’m investigating the relationship between an NFL team’s success in a given season and a coach’s attributes leading into that season.

My sample is 815 coach seasons from 1994 to 2019 (signifying the introduction of the salary cap).

Variables
Dependent
1. Win %  in the season (0-100)
2. Playoffs achieved (0 - didn’t make, 1 - Wildcard, 2 - Divisional, 3 - Conference, 4 - SB Loss, 5 - SB Win). 

Independent
1. Previous Record
2. Seasons at Team in HC Role
3. Seasons at Team Prior to HC Role
4. State of HS
5. College
6. College Conference
7. College Ranking
8. Pro Player (0/1)
9. All Pros/Pro Bowls Reached
10. Games Played
11. Games Started
12. Position
13. Age
14. Previous Coach of the Year
15. Games Coached Total
16. Career Win %
17. Years of Coaching Total
18. NFL HC Experience
19. College HC Experience
20. College Win %
21. College OC/DC/Assistant Experience
22. Other League Experience 
23. Superbowl HC % (Wins/Visits
24. Superbowls as HC
25. Superbowls won as HC
26. Superbowl OC/DC % (Wins/Visits)
27. Superbowls as OC/DC 
28. Superbowls won as OC/DC
29. Superbowl Assistant % (Wins/Visits)
30. Superbowls as Assistant
31. Superbowls won as Assistant
32. HC Playoffs % Reached (Plyoff Reached/Years of HC
33. OC/DC Playoffs % Reached (Plyoff Reached/Years of OC/DC
34. Assistant Playoffs % Reached (Plyoff Reached/Years of Assistant
35. Individual’s experience as OC
36. OC Average Points Ranking
37. OC Average Yards Ranking
38. OC Average Yards - DC Average Points
39. Individual’s Experience as DC
40. DC Average Points Ranking
41. DC Average Yards Ranking
42. DC Average Yards - DC Average Points

Hypotheses (unrefined currently):
H0 = Team’s success in a season does not significantly relate to a coach’s past experience
H1 = Team’s success in a season does significantly relate to a coach’s past experience
H2 = Team’s success does significantly relate to a coach’s past success


Is multiple linear regression at all appropriate for this?

Please feel free to correct me on anything that doesn’t seem right, I’m relatively new to the area so always looking to learn.

(Note: I have Excel or SPSS available so my data has been collected on Excel and I have been on SPSS trying to learn how to use it)
gpt
I will be glad to help, but first please rewrite your post and include only: 

1- your objective 
2- variables (dependent and independent) 
3- hypothesis 

Also, what kind of data are you working with?