The concept of perfection among western Christians including Latter-day Saints is really not Hebraic.
What we think of as perfection is NOT what the Hebrew TAMIM means. TAMIM is translated into perfection but the ENGLISH/EVANGELIC perspective of perfection is not really scriptural.
TAMIM means to complete or make whole. It is really an important concept in understanding both our faith, the Savior's atonement and the quest for perfection in real GODLY terms. Atonement means to complete, to hide/cover over, to make whole.
In God's eye we are fallen, or incomplete, journey unfinished, not whole. So the atonement (Heb KPHR or KAPHAR) is God's sending his Son into the world to complete us, to raise us up from a fallen state, to make us whole to cover over/bury (as in baptism) our sins.
Thus, a quest for perfection is NOT about achieving a 13-0 record (i.e. arriving at the end without mistakes). According to GOD that much perfection is rare (Jesus only). In football its nearly as hard to achieve a perfect seasons, but as a metaphor it works for us to realize perfection is actually the journey and not the final destination. In our lives, we do all we can do, overcome what we can overcome, and in the end we find the JOY of CHRIST to complete us. Why should a BYU football season be any difference?
I'd love to see BYU finish the season without a single loss. But even if it does not, what a great ride it has been to date, and will be in the months to come. It's the ride that matters. When we get to the end with/without any losses, its the playing, the living, the mortality of life/season that counts. As a fan, I try to remember that.
Love the wholeness of the journey. Perfection is in the completion of the journey, not in how many times you fall. It's in how well you get back up and then endure to the end.