Soaring highs can hide deeper troubles. The Austrian Grand Prix was Red Bull's greatest moment of the 2019 Formula 1 season so far, as Max Verstappen gave the team its first victory with new engine partner Honda.
But seven seconds or so after Verstappen crossed the line, the euphoria was followed by a tinge of concern.
Despite being ahead of Verstappen on the opening tour, Pierre Gasly finished a lapped seventh in the second Red Bull. That has only intensified speculation about the Frenchman's future. Especially as Toro Rosso boss Franz Tost has said Red Bull would not lose any face if it promoted Daniil Kvyat to the senior team for a second time - despite previously demoting him back to the junior team, then axing him from the programme completely, then re-signing him to Toro Rosso for a third spell this year.