For I am already being poured out as a drink offering, and the time of my departure
is at hand. I have fought the good fight, I have finished the race, I have kept the faith.  2 Timothy 4:6-7

Even people who lack talent and fail to cultivate other vital qualities can contribute if they possess a tenacious spirit. Being tenacious means:

1. Giving all that you have, not more than you have-Some people mistakenly believe that being tenacious demands from them more than they have to offer. As a result, they don't push themselves. However, being tenacious requires that you give 100 percent-not more, but certainly not less.
2. Working with determination, not waiting on destiny-Tenacious people don't rely on luck, fate, or destiny for their success. They know that trying times are no time to quit trying.
3. Quitting when the job is done, not when you're tired-Robert Strauss said, "Success is a little like wrestling a gorilla. You don't quit when you're tired-you quit when the gorilla is tired." If you want your team to succeed, you have to keep pushing beyond what you think you can do. It's not the first but the last step in the relay race, the last shot in the basketball game, the last yard with the football into the end zone that makes the difference, for that is where the game is won.