The above circuit shows an all-tube, constant current source loaded compound amplifier. The connection from the first stage to the second could have been made from the first stage's top triode's cathode, but that would have confused many into believing that the first stage comprised an SRPP amplifier. (If the top triode's cathode is not attached to an external load, the circuit would function as a nearly constant current source loaded grounded-cathode amplifier and since the 200-ohm resistor sees the same current flow as the 2k resistor, the signal present on the bottom plate must equal the signal on the top cathode. So all we have done is taken DC voltage shift upwards.)
The two extra triodes opens up a rich vein of possible circuit modification. One direction we could move in is to reduce the complexity of the circuit. For example, we have two biasing sub-circuits: one for each constant current source section. If, on the other hand, we were to use the preexisting DC voltages within the circuit, we could simplify the circuit greatly. For example, the input stage's own cathode voltage can be used to bias the second stage's constant current source and the second stage's cathode follower's output can be used to bias the first stage's constant current source. The following circuit makes these points clear.