Decentralization thru legislation, not cha-cha

Sen. Pimentel dangles a 20/80 formula to gain adherents from the LGU's, in particular, to his bid for federalism. Why does he promise a pie by and by when we can have it NOW? If he is really sincere about decentralization, why doesn't he bat for it NOW. The present Constitution allows it. Why go through a circuitous and uncertain route called cha-cha? I think it's all just a problem of legislation. He probably knows that such a proposal would never reach first base in Congress. But what makes him think that both Houses would have a change of heart if constituted as a con-ass? There, he would need as much support as he can from the LGU's without which his proposal would fail. As is true NOW. So, why wait for a con-ass? Why not rally that support NOW? The urgency of the situation calls for it.