Replace Corre with Brizard and you will get the very same line-up that won the match against Poland. But when they win it is totally alright, correct? Corre was not the problem for France at all. As a matter of fact, France possible underestimated Bulgaria, having taken the 2-0 advantage. Which doesn't mean they let Bulgaria win! Yes, Tillie could've played with Brizard, Boyer, and Lyneel in the tie-break, but what guarantees the result would've been any different? The line-up he has used during the past 2 weeks shows that, no matter if you will acknowledge it or not, Tillie is also experimenting with his options, while giving some key players the chance to rest. Yet, we still had Le Goff, Boyer, and Grebennikov on court today, showing France had taken the game seriously.
Why should Australia have a problem with the outcome of the match? They are yet to play against the allegedly weaker opponents and they will get their points. If there is something to blame, that would be the ridiculous schedule, sending teams on numerous airports and continents, or the formula itself. But mostly, these professional teams (should) only blame themselves for the chances missed. Like Australia losing to Serbia's C or D squad. Or not taking advantage against USA in Poland last week, for instance. Blaming it, completely unrightfully, on Tillie's France is really ridiculous, as I said.
I'm not sure if you're serious about doubting the outcome had it been Boyer, Brizard, Lyneel or Le Goff on the court. 
Yes, the coach is experimenting and i don't know why he's doing this. Again, there is no need to experiment with the players he have in his disposal.
Timothee is playing well yet he replaced him with Yacine.
His key players are resting, truth. In fact, some of them are not even in the line-up. 
Jenia and Le Goff played in a lot of sets, yes. but Boyer just played in sets 1 and 2 of this game in 2 weeks, he doesn't need more rest. 
Shame because Portugal really played well, but they wasted many opportunities in 3rd set.
