Tait isn't going to simply get better by bowling in domestic cricket, where he is quite dominant. Tait's last FC game was at the end of November, where he took ten wickets. However, the time between then and now is telling as he seems underprepared. Like any raw fast bowler, he needs to grow into the task. He's well proven at ODIs, but even that took a few games to get going.
No doubt he's been told to 'just bowl fast', when perhaps someone should say 'relax, forget about the speed guns; if it's coming out quick then it is coming out quick. Now, here's a plan we want you to try...'
Very true as I said after the first day he needs more test matches to settle himself in, 1 test every 2 years will see him always bowl like this.