I'm not sure how you could pull B'Elanna out while she's clearly established from episode 3 on to have continued her education else where (informally) and was very much considered to be genius level in her understanding of engineering concepts.
I think if Tom was on the Enterprise, I'd be willing to bet he'd clash with Riker considering how we saw how he reacted with Levelle.
Picard is established to be an excellent pilot too. Everything suggests he followed a similar career path to Tom Paris (IE starting off as the ships Conn officer).
But even at that, my point is there are other members of the crew who have a TON more experience running particular posts that you would generally have step in over a first officer who lacks the same level of (recent) experience running that position.