This is truly embarrassing for BVB. Spec and Watzke did magnificent in leading the club out of the **** storm they were in. But they've proven to be inept when it comes to selling players. To lose Gotze, Hummels, and Lewa to your second biggest rival in the world is ****ing ridiculous.
What can they really do about it? So, maybe putting a release clause in Götze's contract was a mistake in hindsight, but who knows whether he'd have extended without that in the first place? Lewandowski had his eyes set on joining Bayern, and Dortmund played hardball to not let him go there as long as they could, even forfeiting €20M-ish. Now it's Hummels (somewhat suddenly) deciding to break things off and move home. What can Watzke/Zorc do about that? It's not like they can just shove them onto some EL team for a fortune just because that'd be kinda ideal for them.
They were in shambles a decade ago. You don't just move past being a feeder to European giants over one wave of an exceptionally talented squad. I understand that it sucks for their supporters that it just seems to have to be that one giant that is one of their arch rivals, but I fail to see what Dortmund's front office can do about it, short of brainwashing their players to yearn for the experience of playing abroad.