He said this soon after swearing in the newly appointed cabinet and deputy ministers at a function held at State House.
"It is just a renewal," he said.
"We are looking at points that needed strengthening and invigorating for 2007."
Mugabe said the reshuffle was meant to strengthen the performance of the various ministries and correct shortcomings that manifested last year and in 2005.
He said the cabinet was a fusion of both young and old blood with the deputies comprising largely young Turks, who were being moulded to take up the reins in the near future.
On threats by the opposition to embark on defiance campaigns to force the government to the negotiating table, Mugabe said the government would not allow chaos to occur in the country.
"The deranged ones ' those are in the wilderness and they will continue to be in the wilderness," he said, referring to the opposition.
Mugabe also denied reports that the government was repossessing farms from all white former commercial farms, saying only those whose farms had been designated would be affected.
"So you cannot blanket them all," he said.
First to take the oath was new Information and Publicity Minister, Sikhanyiso Ndlovu, who previously was Deputy Minister for Higher and Tertiary Education.
Second in line was the new Economic Development Minister, Sylvester Nguni, the erstwhile Deputy Minister for Agriculture, followed by new State Enterprises, Anti-Corruption and Anti-Monopolies Minister, Samuel Undenge, who was previously Deputy Minister for Economic Development.
The newly appointed deputy ministers were next to take the oath, with Indigenous and Empowerment Deputy, Senator Tracy Mutinhiri, leading the pack, followed by her Water Resources and Infrastructural Development counterpart, Walter Mzembi.
Economic Development Deputy Minister Senator Guy Georgias was the last to be sworn in.
Mugabe on Wednesday reshuffled the cabinet, dropping Finance Minister Herbert Murerwa, and reassigning some ministers and deputies.
In terms of subsection 1 of section 31 (d) of the Zimbabwean Constitution, newly appointed ministers and deputies are required to take and ascribe to the oaths of loyalty and of office, while sub-section 2 of the same section requires cabinet ministers to also take the oath as members of the cabinet.
Deputy ministers that were reassigned include Reuben Marumahoko, who moved from the Home Affairs portfolio to Foreign Affairs in a swap with Obert Matshalaga, and David Chapfika, who moved from Economic Development to Agriculture.
Speaking soon after being sworn in, Information and Publicity Minister Ndlovu said his priority would be to correct the bad image the country has had as a result of negative publicity.
He said he would also work hard to instill a sense of patriotism within Zimbabwean media practitioners some of who, for the love of money, peddled lies about the situation in the country.
"We want to have one Zimbabwean press. We may have different perspectives, but we need one perspective on this country," he said, adding there was no need for differences between the media and the government.
On alleged repressive media laws, Ndlovu said some legislation was passed to curb excesses and ensure professionalism.
Indigenisation and Empowerment Deputy Minister Mutinhiri said she would do her best to economically empower women who have been marginalised for a long time.
"I will ensure that a quota of funding is set aside specifically for women," she said.
Mutinhiri said she looked forward to facing the challenges of her new job, adding she had never shirked from responsibilities.
Vice Presidents Joseph Msika and Joyce Mujuru witnessed the swearing-in ceremony, which ministers that were reassigned also attended.
These include Joseph Made, who was made Minister of State for Agricultural Engineering and Mechanisation; Rugare Gumbo, who was moved from Economic Development to Agriculture; and Paul Mangwana, who moved from State Enterprises, Anti-Corruption and Anti-Monopolies to Indigenisation and Empowerment. ' New Ziana.
