Stalling tactics. Zelensky does not have any means to win against military with his current forces, so he's taking his time waiting for situation to deteriorate. Let's review what he did recently:

• releasing criminals from jailhouses and arming them with firearms

• announcing visa-free entry for mercenaries

• placing battlestations in civilian building blocks for sweet tasty pics of "russians shooting civs with missile strikes"

• actively encouraging civilians to arm themselves with molotovs, take arms and engage russian troops. That would be suicidal, but makes a nice photo for CNN.

• complete abandon of support of people in kyev. no evacuation organized, no supply lines established, only ammunition and military vehicles going in.

• massive witch-hunts. People starting to shoot each other suspecting spies in every neighbour.

It's not about winning, it's about optics. He wants chaos in kyev in order to pull more europeans into engagement.