No wall breaker strategy?

Hi,

a new member just got me stunned by making his 2 war attacks without any wall breakers. Not talking about drags, loon or hogs here. Just plain ground attack with wiz and giants (low TH9).

On his first attack, his 15 wiz got the job done and he could punch the two wall layers to get to the TH but failed to get 3 stars because of time. Made a comment about lack of time, but couldn't argue long about the wall breakers since he got at least 2 stars.

But on his second attack the second layer was level 8 walls and the wiz just couldn't punch through and got gunned down my the xbows.

Do some of you think that a TH9 can manage good attacks using ground troops on a well developed TH9? Or am I right to assume that a minimum of wall breakers are needed to quicky pull your troops in for the kill and get a chance for 3 stars.

I was never the giant/healer type so I don't rely much on my giants to do the beating. I find them slow all the time.