The
rule book is your friend:
Each team is headed by a sports manager
assisted by a deputy both lisenced
in an affi liated Federation in UCI.
During the race, they must remain in
one of their two accredited technical
vehicles at all times. They must ensure
that the regulations are followed
by their riders and their staff and they
must respond to summonses issued
by race management within the allotted
times.
Almost always, the bottles accepted from spectators are poured on their heads to cool down. Some of the "spectators" may actually be assistants affiliated with the team (like those who pass out bags in feed zones).