Chasing 217, the Blues lost their four best batsmen late on day one to reach 4-70 at stumps with Matthew Kerrison set to join Ben Kidd (0*) at the crease when play resumes on Saturday.

Having claimed 4-5 to seal a two-run win over South Launceston two weeks ago the Blues have precedent for comeback wins, but Garwood insists there would be nothing miraculous about compiling the 147 needed to secure first innings points.

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"We're only four-down needing to make 220, so we're going in with a fair bit of confidence with our batters," the gun opener said.

"We've still got Matthew Kerrison, Ben Kidd, Stubbsy [Lyndon Stubbs] and a lot of batters to come who we think can do the job.

"Tom Gray proved that by batting and making 80-odd last Saturday so there's no reason why we can't do it."

Cam Lynch for Zac Oldenhof is Launceston's only change as the home side eyes a return to the top three.

Coach Alistair Taylor said accurate bowling from the get-go would take his side a long way towards victory.

"Everyone kind of knows that third spot is up for grabs at the minute so we're not looking too far forward ... we just want to make sure we play a really good first half-hour and hour," Taylor said.

"We had a really good session on Tuesday, got some new balls out and put it on the batters - especially the top order - to score some runs.

"The bowlers bowled really well and tried to hit the stumps - it's no secret that's what you've got to do at the NTCA so that's how we we train when we play there."

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WESTBURY can make a play for top spot and even bonus points as it continues its pursuit of Mowbray's 130.

"Our first goal is to knock that total off with as few wickets down as possible," captain Dan Murfet said.

"Depending on what time it is then see if we may be able to develop a lead and see if we can get Mowbray back in later in the afternoon because you never know, late day two things can happen."

Corey Briggs will replace Liam Ryan, who nabbed career-best A-grade figures of 4-20 last week.

"He's not a fast bowler by any means but he's usually really accurate," Murfet said.

"It was good to see him get a few wickets last week - our whole group bowled really well."