Mr Pohiva, who was effectively sacked by the King back in August, has returned as leader for a second term.
Mr Pohiva's Democratic Party had won 14 of the 17 Peoples' Representatives seats in the election on 16 November and he won his prime ministerial election on Monday in parliament by the same amount.
The other contender, former deputy prime minister Siaosi Sovaleni, got 12.
Mr Moala said during the election Mr Pohiva was seeking a second chance.
"He's basically saying 'we are going to get back in and finish what we have started' and, of course ,what they have started is a big question mark because the last three years have been full of all kinds of scandals and all kinds of issues that actually resulted in the dissolution of parliament," he said.
"But let's see what happens in the next four years."