Answer:
And the value of losing as well as winning is the error.
Step-by-step explanation:
That phrase is wrong because it breaks the parallelism in the sentence. Parallelism means that the same form of a word or phrase is used throughout a sentence; for example, only gerunds or participles are used.
In the sentence above, infinitive phrases are used: to follow instructions, prepare for games, adjust to new situations, and then suddenly a noun is used instead of another infinitive phrase.
The correct sentence would be ... and to value losing as well as winning.