After the battle of Wolf 359 Starfleet Commander Shelby transferred from the Enterprise-D as first officer to a new position more befitting her expertise on the Borg; taking a position leading Starfleets reconstruction of its fleet with a focus on creating ships that can hold up against the Borg. In Star Trek: Deep Space Nine we are introduced to the fruits of their labor---The Defiant---a ship assigned to newly promoted Captain Sisko at the start of the Dominion War; a ship that was built as part of Shelbys task force of Borg Proofed ships. Yet, at the beginning of First Contact when Worf takes the Defiant up against a Borg cube the ship is disabled and useless very early in the battle. Did Starfleet build such a bad ship, or was Worf that bad of a Captain? Perhaps since it was left adrift but salvageable Starfleet focused their efforts on building ships that could only survive a Borg attack rather than repel one? Either way, the Defiant is not nearly the tough little ship we have been led to believe she is. After all she crashes and is rebuilt more times than Red Dwarfs Starbug.