Defender Calls For Improvements From Backline
"The games are running out now, so we need to be ruthless and take three points on Saturday," said Demetriou.
"We've been away from home and shown that we can get stuck in and come away with three points."
And recently-turned 25-year-old Demetriou believes some of Town's late wins on the road, most recently the 2-1 victory at Accrington Stanley, prove the Club can get good results away from home.
Wycombe are the last team Town will face out of the current top five in the League Two table.
"We know as a back five that we need to be slightly better in controlling the game," said Demetriou.
"It was a good game against Wycombe (at the Greenhous Meadow) back in December, and it will be a tough game now because there is more riding on it than there was back then.
"They (Wycombe) press high up the pitch, the did that when we played them at home.
"A lot of teams are doing that to us at the moment so we need to get around that and find a way to play around them and drag them out of holes.
"We need to get ourselves further up the pitch and we've all looked at it (with Mike Jackson).
"We're not defending the same way we did at the start of the season so we need to change that."
The Shrews have kept 20 clean sheets so far this season but none in the last four games, meaning Demetriou wants a Town to run a tighter ship against Gareth Ainsworth's side.
Town travel to Adams Park in Sky Bet League 2 at the weekend (3pm kick-off), currently sitting second in the table, for a crunch clash against the third-placed Chairboys.
Defender Mickey Demetriou has called for improvements from the Shrewsbury Town backline in order to pick up a positive result at Wycombe Wanderers on Saturday.