In 'First Contact', La Forge makes reference to the crew of the Enterprise-E having been in space for over a year by that point. Given that the revised ST:FC Starfleet uniforms (grey shoulders) were introduced in 'First Contact', and we have an opportunity to observe Starfleet uniform protocol in the year preceding 'First Contact' (by watching 'DS9' and noting when the uniforms change), is it reasonable to assume that Picard and co. spent some time on board the E, rocking the uniforms from the TNG TV era?
*** EDIT ****
I was correctly reminded that in 'Generations' we saw a gradual shift from the 'TNG' TV-era uniforms to the 'DS9'-style uniforms.
However, my question is now: "is it reasonable to assume that Picard and co. spent some time on board the E, rocking the uniforms from the 'Generations'/'DS9' era?"