Once regarded as top-four locks, the Power have slipped from the peak of the AFL ladder to fifth after losing four of their past six games.
Port limped into last weekend's bye after escaping with a three-point win over Melbourne in round 18 and Wines admitted the week-off "definitely" came at the right time for Ken Hinkley's men.
Having reflected on the sharp drop-off in form, the Power believe they can rediscover their mojo against Collingwood at the MCG on Sunday.
Wines said the Power's forward, defensive and midfield groups have each "come up with a few reasons" for the slump.
"Probably for the midfielders, we started losing a bit of contested ball - we call them ‘ground ball gets’, picking the ball off the ground," Wines said on Melbourne radio station SEN on Thursday.
"They're something our footy club culture is built around - that contested ball, hard-style football.
"It's something that we've really implemented in training. We won it against Melbourne, so we did make an improvement there, and hopefully we can keep going against Collingwood."
Despite Port's struggles, it remains only 0.8 per cent behind fourth-placed Fremantle, with both clubs on 48 points.
The Power face a testing run home, however.
Port should start favourites against Gold Coast (away) and Carlton (home), but will most likely be underdogs against the Sydney Swans (home) and Fremantle (away).
It's likely they will need at least four wins from their remaining games to be in contention for a finals double chance, starting against the battling Magpies.
"We have had a bit of a lull and we probably have gone back to hunting a bit more than being hunted," Wines said.
"For us it's all about trying to get that top four position and to play finals football.
"It's going to be a big game (against Collingwood) and there's nothing better than to be on the MCG."
