For channel partners managing enterprise network services, here is a question that’s a sign of our times: When your customers' AI workloads start underperforming, who will they call? That call is coming, according to Manish Mangal, president of Tech Mahindra's Americas communications business and a 27-year telecom veteran with stints at Reliance Jio, Sprint (now T-Mobile US) and Nokia. He worries that network operators and their partners aren’t ready for it.