It is good news that Anthony Manetta will end his $10,000-a-month consultancy with the Suffolk County Industrial Development Agency in June. Manetta was the IDA's executive director until March, when he resigned and opened a consulting firm. But he didn't earn much less from the IDA after he quit: He drew $12,916 a month as a full-time employee, even though he was only working 20-25 hours a week. Now, the IDA board and County Executive Steve Bellone will pick a new leader. The next director must work well with other IDAs in the region, and dispense tax breaks only when solid jobs are the payoff. The best chance of that will come from hiring a proven economic development professional, rather than simply a political ally, like Manetta, of the powers that be in Suffolk.