What can BIG do to get better?

I honestly really liked the vibes of BIG team this tourney. They also gained a lot of experience so good for them. Twisten is cracked asf, God b is good as an IGL and their support players look good on their days. But they still went 0-5 this tourney, what can they do to get better?

twisten - duelist every map
aslan - conroller every map
-kaspe +alfajer on sentinel