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Far more important is staying in the Championship for a third season.
Argyle are four points from safety at the bottom of the table but have found a new lease of life under recently appointed head coach Miron Muslic.
The Austrian succeeded Wayne Rooney last month after the former England captain's desperate six months in charge that saw Plymouth win just four league games.
Since Muslic has taken over, Argyle have won back-to-back games for the first time this season and have lost just two of their last six games.
"I haven't seen the data from today but I'm going to guess that we held our own against Liverpool," Hallett said.
"We held our own against West Brom and we'd not been holding our own, even in games that we won this season, very often.
"So the underlying performances have been poor but the last few performances have been much, much better, particularly at the back, and I think Arne Slot was saying that the way we were set up made it very difficult to create chances against us.
"Until recently, we were the easiest team in the Championship to create chances against so something has clearly changed and that gives us hope for the rest of the season."