Vancouver Whitecaps in midst of 7 games in 21 days [Video]

Vanni Sartini isn’t known for keeping his opinions to himself.

During training, the head coach of the Vancouver Whitecaps regularly paces the field, yelling instructions in multiple languages and gesticulating wildly.

His relative quiet at Tuesday’s session was noticeable, but as the ‘Caps (13-8-6) gear up for a packed stretch of critical matchups — starting with a visit to the Houston Dynamo on Wednesday — Sartini is “biting his tongue.”

“I think in this period, the coaching is more the planning than the coaching on the field,” he said Tuesday.

The Whitecaps head to Texas on a four-game unbeaten streak across all competitions, including a 2-0 victory over the San Jose Earthquakes last Saturday. The stretch is due to the quality of the players and a schedule that included just one game per week, Sartini said.

“We had time to train each week and, having a lot of quality players, …