No it's not, it's our first rebuild since Fergie retired. That's exactly the point.
What separates a rebuild from just buying a few players to strengthen the team is that you see it as something that will take some time, where the main success criterion is where you are at the end of it, and where in the mean time you are prepared to be patient and not overly focused on the results underway.
That did not happen under any manager between SAF and OGS. Moyes was expected to Win Now and didn't, so he was fired within a year. Van Gaal was expected to spend big money to restore normality (ie, Win Now), but it took too long, so he was fired. Mourinho was brought in to Win Now and instead crashed the club into the ground, so he was fired.
And the lesson you'd take from that is that we should call quits on the rebuild and bring in someone new to Win Now?