Well, confidence is a funny thing, difficult to measure, impossible to bottle. A near-full house inspires some insiders, a perfectly paced Death in Venice does it for others. The irrepressible enthusiasm of a young music director, Ed Gardner, has turned some doubters to believers; solid competence from the management pair of Loretta Tomasi and John Berry, neither of them natural leaders, has kept fingers off the panic buttons. Conversations with people at every level of the Coliseum staircase suggest that, for the first time in a long while, the pride is back in Frank Matcham's palace.