Learn Hardcore Turkish: Ekip toplantı saatlerini esnekçe belirliyor. - The team flexibly schedules the meeting times.

esnekçe is an adverb meaning “flexibly” or “in a flexible way.” It is formed by adding the suffix -çe to the adjective esnek (“flexible”). The suffix -çe (or -ca/-ce/-ça) turns adjectives into adverbs expressing “in the manner of ….”
Other ways to say the same idea include:
• esnek olarak (“as flexible” – more formal)
• esnek bir şekilde (“in a flexible manner”)

Why does toplantı saatlerini end with -ni?

In Turkish, a definite direct object takes the accusative suffix -i (with buffer letters if needed). Here’s the breakdown:
• saat (hour)
• -ler (plural) → saatler (“hours”)
• buffer n + -i (accusative) → saatlerini (“the hours” as a definite object)
So toplantı saatlerini means “the meeting times” as a specific, definite object of belirlemek (“to set/determine”).

Why is the verb belirliyor not belirliyorlar, even though ekip refers to a group?