A moment's inattention allowed the other team to score.
Looking at my boss, I would say he suffers from selective inattention.
inattention /ˌɪnəˈtenʃn; US / noun [uncountable] lack of attention The tragic accident was the result of a moment’s inattention. ▶ nieuwaga zaniedbanie
The accident was the result of a moment's inattention. One moment of inattention when driving could be fatal.