Head coach Matt Maynard admitted that 'changes will be made' after Glamorgan's batting line-up struggled against Somerset in the Vitality Blast clash at Taunton.
With the side struggling to build strong first innings totals, Maynard believes his player needed to braver with the bat out in the middle.
"We were about 60 runs short. We're not brave enough with the bat, there was some timid batting there tonight and there'll be some changes for Thursday.
"The lads are being positive and giving the ball a good smack in the nets, out in the middle, nerves are playing a part. The skipper's played brilliantly and rescued us in two games but couldn't quite pull it off today.
"Nick Selman has a tidy T20 record so he'll come in for Thursday, Owen Morgan is a bright prospect and will also come in, there might be an opportunity for a third."