New Delhi, Aug. 10 -- Persistent Systems Ltd named Jaideep Vijay Dhok as its chief operating officer for technology on Thursday, marking its third leadership change in as many weeks, to bolster its growth momentum. However, the country's ninth-largest information technology (IT) outsourcer is not the only one to have made leadership changes in the recent weeks.

At least five of its peers earning less than $5 billion in annual revenue announced a dozen such leadership changes in total-ranking vertical heads and above-in less than 45 days. Analysts attribute these changes at mid-tier IT firms to their ambition to grow their business, with many of them luring top talent from their larger peers with proven skills and experience in scaling co...