An aircraft with a forward-swept wing (FSW) is very unstable and thus highly manoeuvrable but as pre-computer age designers found out also almost humanly impossible to control. But when a digital fly-by-wire flight control system is paired with onboard high speed computers, fly by wire digital control system, super-responsive wing actuators and flexible composite material wings, the result is a FSW aircraft can fly rings around anything in the sky including most modern fighters. Once controllable, forward swept wings have many advantages over conventional wings including, lower drag and lower stall speeds, super manoeuvrability as well as excellent control and roll response within high angles of attack.
With the wings fully swept aft the aircraft can slow to drop precision weapons or land on short unimproved runways. Swept forward twenty degrees and the aircraft becomes a highly agile air combat platform. Sweep the wings fully forward and they become flush with the aircraft with the trailing edge becoming the leading edge, forming a highly swept 75 degree stealthy delta perfect high speed escapes up to Mach 3.
As you can see the Switchblade can carry out multiple missions just by reconfiguring itself in flight
Below is a patent application by Northrop Grumman from November 1999 which is believed to be for the Swtichblade.