Graham Turner refused to get carried away after his second spell in charge of Shrewsbury got off to a winning start.
Jake Robinson starred with a hat-trick as the Shrews ran out 3-1 winners over Bradford.
The Bantams had taken a first-half lead through debutant Tom Adeyemi.
"There were moments in there that were very encouraging," said Turner. "We looked a little bit nervous in the first 20 minutes but once we started to use our wide players and pass it in the manner that we can I thought like we looked like a decent side."
On hat-trick hero Robinson, he added: "His finishing was excellent and he's a lad who's got that capability.
"He's got good skills, ability and pace and he could be a big asset to us this season."