Social media and other communications technologies sometimes enhance the RFP process, but they have not supplanted face-to-face meetings as the crucial step to determine chemistry between an agency and a prospective client, say industry leaders.

The issue was highlighted earlier this month when Starwood Hotels & Resorts brand Aloft Hotels put a new spin on the RFP process by inviting agencies to pitch for its business via Twitter, calling it the “RFTweet.”

While numerous agencies immediately tweeted their interest at ...