Nigeria stand-in captain Asisat Oshoala has attributed limited time to blend as a team for her side's below-par performance against Algeria on Tuesday.
The Super Falcons held a 2-0 first-leg lead over the North Africans in Bilda but they laboured to a 1-0 win in return leg to advance to the third round of the Olympic Games qualifiers in Lagos.
The triumph means the African champions will meet Cote d'Ivoire, who subdued Mali 3-0 on aggregate, in the next round of the qualifiers later in September.