Sean Holley has backed the Ospreys to march to RaboDirect PRO12 glory.
The Swansea-based region face reigning champions Munster in the play-off semi-finals at the Liberty Stadium tonight.
And the man who last delivered silverware to the Ospreys reckons his former side can clinch a fourth league title - providing they overcome the European giants.
"If the Ospreys beat Munster I think they will win the Pro12 outright," Holley told the South Wales Evening Post.
"They know how to beat Leinster, the key is to avoid playing too much rugby against them, and I would feel confident about the region's chances even if they had to go over the Irish Sea for the final. That said, I wouldn't write off Glasgow against Leinster in the other semi tomorrow.
"But Munster will be a huge test. Even though they have had a great run of late, the Ospreys will know they are facing an outstanding knockout team, cup kings who are massively difficult to beat in a one-off game.
"Munster have the ability to raise their game and produce huge performances when they need them.
"That is what it takes to win a competition like this and the Ospreys have shown they can do it as well.
"They have beaten Munster before in a knockout game at the Liberty and they will take encouragement from defeating them twice already this season. And home advantage matters, particularly if the supporters get behind the players."
History would suggest tonight's clash in Swansea will be a tight and tense affair - the last six encounters between the sides have been won by seven-points or less.
Holley, who left the Ospreys in February, reckons the result could come down to the smallest of margins and highlighted the importance of the regions game-breakers.
All eyes will be on Welsh record try-scorer Shane Williams, who could be making his last appearance at the Liberty Stadium before retiring from professional rugby in the summer.
"It could come down to one moment of magic or one error," added Holley.
"You need your game-breakers to report for duty in a match like this. In the semi-final against Glasgow two years ago, James Hook did wonderfully to set up Shane for an early try, and we didn't look back, even though the game was really tight.
"At this stage all the teams involved are going to be top drawer and margins will be slight.
"There is the possibility that one of the coaching teams will come up with a tactical diamond that gives their team the edge. It could be really tight."
Wales Head Coach Rob Howley talks to WRU TV's Sebastian Barrett about the 36-man squad he has just named for the forthcoming Under Armour series, which includes two uncapped players, Ospreys duo Sam Davies and Rory Thornton.
Head coach Rowland Phillips is deligthed he can now call BT Sport Cardiff Arms Park home for his Wales Women's side, who launch their international season next month with games against Scotland and UK Armed Forces in the heart of the capital city.
Wales Sevens star Sam Cross has put his home town club of Brynmawr on the map after winning a silver medal at the Rio Olympics with Team GB. His club have now honoured him by naming their players bar after him, as WRU TV discovered at the official launch, recently.
One of the newest members of the Principality Premiership, Bargoed admit it's proving to be a steep learning curve at the highest level, but are determined to become a force to be reckoned with. WRU TV visited the club last weekend when they took on Llanelli.
Table-topping Aberavon travel to north Wales to tackle RGC 1404 as both teams defend unbeaten starts to the season in the Principality Premiership. WRU TV's Graeme Gillespie visited the Wizards to see how their preparations were going for the game of the weekend.
The Half a Game initiative is currently sweeping across Wales and proving a major success. The scheme aims to give every young player at least half a game every weekend. WRU TV recently visited a festival in Narberth where clubs have fully embraced the initiative.
Both Bargoed and Swansea were seeking their first win of the Principality Premiership season this afternoon. It proved a fruitful day for the hosts - not only did they win, but Bargoed claimed a try bonus point.