You are right. PSG's transfers definitely have to do with the strong influence of Leonardo and Ancelotti. I can't help thinking that with, say, Valdano and Del Bosque there, PSG would have been more concentrated on La Liga players.
In any case, this is somewhere between what you and Osman are saying. The Italian teams are in terrible financial situation and they are looking for these big spenders to contact them, but without the strong serie A influence in PSG, many of the departed serie A players would have played in Italy next year, instead of France.
As far as it concerns Juve, I think this can be terrible for us, but also it could turn out to be fantastic in the end. One on side, which is a strong possibility, the decrease of quality in the league can have very bad consequences on Juve too. Maybe not terrible consequences, since we can see that Bayern manage to survive at the top 5 in Europe even with a weak and unattractive league, but negative consequences nevertheless. On the other side, if Serie A manages to return from the dead in 3,5, 10 years and it becomes strong again, the consequences of the bad period will be behind the league and Juve as part of the league, but it will allow us (Juve) to win a loooot during this bad period where we seem to be the only financially stable team. Then, hopefully, all that people will remember is that Juve has 36 scudetti, double more than their rivals. Then again, this last part might be nothing more than wishful thinking, but I do have hope that serie A will be back from the dead. Football is simply too big for this nation. We can do nothing now but take advantage of the bad situation Milan and Inter are in.