Terry McMaster became City of Derry head coach in early January and since then he has worked wonders with three wins in four AIL games and a losing bonus point in the other.
The Judge's Road team are determined to retain the same standard of rugby next season but need to finish in the top 10 of the current 2A standings to do so.
At the start of January, they were lying in 13th place having scored 170 points and conceded 215. Since his influence, they have accumulated 114 points and only conceded 32.
On Saturday, they took on a Queen's team hit by injuries and without their Ireland under-20 players and ran out 43-0 victors at Judge's Road.
They scored four tries in the first half and a total of seven, four of which were converted by scrum-half Andrew Semple.
Director of Rugby Moss Dineen said: "Within a couple of minutes Richard Baird put us ahead with a try and with Chris Shields, David Ferguson and Sam Duffy making powerful drives, we mounted wave after wave of attack."
Peter Henderson broke through and linked with Adam Bratton who touched down for Semple to convert. Semple and Richard McCarter controlled the encounter with the former converting both a Houston and penalty try to put them 26-0 ahead at the interval.
Derry are currently in 10th, one point in arrears of Naas and Thomond but four ahead of Nenagh/Ormond.
It's an RBAI/Wallace High Danske Bank Medallion Shield final at Kingspan on Monday March 9.
In the semi-finals, holders Inst eliminated Sullivan Upper 18-14 and Wallace High squeezed through against Campbell College 11-9.
Inst took an eight-point interval advantage but a late rally brought the Holywood team within a score at the end.
"It was a tough physical game and our early pressure led to a Kyle McComiskey penalty," stated Inst coach Gavin Monteith.
"We kept possession, kicked well and deserved our first try when our No 8 Ethan Glover scored following a maul. We were satisfied with our first-half efforts and on the restart we went further ahead when our out-half David Lyttle intercepted and ran in under the posts for McComiskey to convert."
Sullivan found renewed strength which resulted in Stephen Moore scoring for Rory Kirkpatrick to convert. When McComiskey kicked an Inst penalty they were 18-7 in front but their opponents kept up their challenge. With five minutes left, Moore added a second converted try but Inst then maintained possession and saw the game out.