Mike Prendergast says that La Rochelle can claim a first ever European title in tomorrow's Champions Cup final.
La Rochelle will take on four-time winners Toulouse in the decider on Saturday. Ronan O'Gara is the Head Coach at Stade Rochelais alongside Director of Rugby Jono Gibbes.
Speaking on RTÉ's Game On, Prendergast, who is currently the backs coach at Racing 92, said he is impressed with what the 128-capped Ireland international has brought to La Rochelle.
"They just seem to be doing everything right in terms of the culture," said the Limerick native.
"I know Ronan from his time down in the Crusaders. He obviously had a lot of learnings from that side of things with Scott Robertson. He brought that skillset (to France) along with his own technical and tactical ability.
"In terms of how he manages his team and how he has built relationships, and in terms of what they do off the pitch, and the length of time they're on the pitch - they seem to have the right balance there.
"They look fresh all the time. They don't have many injuries. So everything is pointing in the right direction for them, so credit to ROG and Jonno for really bringing it together."
No matter what happens Saturday's match will mark a first French win in Europe's Premier club competition since Toulon claimed the crown back in 2015.
The final pair are also battling it out for the Top 14 title, with just one point separating Toulouse from La Rochelle with two rounds of fixtures in the regular season left to be played. They will be followed by the play-offs.
Prendergast, who had two spells with Munster, is backing his former provincial team-mate to come out on the right side of the result on Saturday evening.
"From an Irish point of view, and from a Munster point of view I'd love to see RO'G win it," he said.
"Since he started on his coaching journey he's won a Top 14 here with Racing. He won two Super Rugby championships with Crusaders, but I think this will top everything off.
"I think La Rochelle will go on to win it. I just think they've the bit between their teeth.
"Another thing that's up in the air is whether (Levani) Botia will play. He went off against Leinster but there are positive enough vibes that he will play.
"They're on a role - they're confident. Saying that Toulouse can score from anything. But I'm going to go with La Rochelle."