Import volume at the nation's major retail container ports is expected to increase 12.4 percent in March as retailers begin to stock up for the spring and the summer season, according to the monthly Global Port Tracker report released by the National Retail Federation and Hackett Associates.

Analyst Insight: For retail, what's on the supply chain horizon isn't one-dimensional, purely best practice, absolutely the optimum, but rather a continuum of distinct models working within several different environments. From a supply chain vantage point, the best retailers are those who orchestrate supplier resources with their own, resulting in agility and responsiveness to changing situations and differing customer needs. - Robert Sabath, Principal Essentialist SCM, Trissential

Analyst Insight: Next-day delivery is the new normal. And fulfillment windows are compressing even further as companies like Amazon continue to raise customer expectations. But companies wrestle with what level of service makes sense, and how to justify investments. It's not about making every process in the DC faster. It's a delicate balance of revenue gains and improved customer service against investment and operating costs. - Helgi Thor Leja, Industrial & Electrical Industry Leader, Fortna Inc.

I'd like to propose a symbol for those huge new vessel-sharing alliances that will dominate the global container trades this year and beyond: a great big question mark.

Analyst Insight: Online sales surged last year, and many companies saw their e-commerce sales grow by double digits. This growth is expected to continue for the foreseeable future, so the good news is that rising rates and revenue for e-commerce are significantly exceeding expectations. But there is bad news too - e-commerce is stressing distribution operations and many companies are having difficulty keeping up. Adopting the right operational practices for order fulfillment is essential for business success. - Kelly Reed, Partner, Tompkins International