Obi, a C, said serious leaders form their cabinet within one week of assuming power.
Buhari, who dissolved his cabinet prior to his swearing-in on May 29, was yet to unveil his new team.
Obi, while addressing journalists in Lagos at the weekend, called on the president to constitute his cabinet as soon as possible.
According to him: “…these are serious leaders who are ready to move their countries forward. Imagine forming their cabinets within one week of being sworn in.
“Can you compare them with what is happening here in our country? I have always said it that for our country to move forward, it must change its current compass.”
The vice presidential candidate faulted the Buhari-led government for allegedly plunging Nigeria into a debt of over N11 trillion “despite having nothing to show”.
“What we have today in Nigeria is the cumulative effect of leadership failures. A leader must know his/her destination. Painfully, we have plenty bad role models masquerading as leaders.
“Nigeria is in total mess because of too much borrowing caused by leadership failures. Our situation will get worse if we do not solve these problems urgently. There is serious crisis in Nigeria because politics is now business and transactions. In fact, we have reduced our lives to transactions in Nigeria.
“Tell me, what is working in Nigeria today? A country where states owe billions and the federal government has borrowed over N11 trillion since coming into office and there is nothing to show for all the borrowed funds. Are you not worried that over 21 million of our youths are not employed?
“Nigeria is gradually collapsing and unemployment is part of the disease killing Nigeria. All hands must be on deck to help save our nation from these leadership failures.”