Something often observed in authoritarian states is duplication of effort because of empire building. The ruler cannot trust any of his underlings- they are all sucking up to him and backstabbing each other constantly, so he pits them against each other, assigning overlapping responsibilities on purpose to keep any one subordinate from becoming too strong. This is why all of the "fascism/communism is so efficient" arguments need to actually look at the nature of Soviet or Nazi governments. As an example, there were at least five completely separate armed ground forces in Nazi Germany (1).
This constant competition between parts of the government actually led to tremendous waste. You can see it again in the Soviet space program during the 1960's. While NASA had a single purpose of getting to the moon before 1971 with a unified organization under the control of a single leader, after Khrushchev was deposed (and Korolev died) the Soviet space program splintered into a war between the old OKB-1 (Korolev's group) and Chelomei's OKB-52 that lasted for twenty years over Super-Proton vs Energia etc.
1: The Wehrmacht and the Waffen-SS are the two most famous, but the Luftwaffe recruited, trained and equipped the Fallschirm-Panzer Korps and Fallshchirmjaeger- yes, German paratroops worked for Goering not the Wehrmacht. There were also five Marine Infantry Divisions under the Navy- they had half as many Marine Divisions as the US did, despite many fewer amphibious assaults! And the Volksturm, at the end of the war when things looked grim for Nazi Germany, was under NSDAP party control but separate from the Waffen-SS.
This constant competition between parts of the government actually led to tremendous waste. You can see it again in the Soviet space program during the 1960's. While NASA had a single purpose of getting to the moon before 1971 with a unified organization under the control of a single leader, after Khrushchev was deposed (and Korolev died) the Soviet space program splintered into a war between the old OKB-1 (Korolev's group) and Chelomei's OKB-52 that lasted for twenty years over Super-Proton vs Energia etc.
1: The Wehrmacht and the Waffen-SS are the two most famous, but the Luftwaffe recruited, trained and equipped the Fallschirm-Panzer Korps and Fallshchirmjaeger- yes, German paratroops worked for Goering not the Wehrmacht. There were also five Marine Infantry Divisions under the Navy- they had half as many Marine Divisions as the US did, despite many fewer amphibious assaults! And the Volksturm, at the end of the war when things looked grim for Nazi Germany, was under NSDAP party control but separate from the Waffen-SS.