I presume OKH hoped to avoid routs and the possibility of leaving formations on the map in favor of surrender.
When Stalin convenes with STAVKA he is presented with the first map showing the strategic situation facing the Soviet Union.

German motorized infantry are able to enter Riga while a Pzr Div and Mot Div cross the Daugava south of the Aiviekste river.
German units of Panzer Group 2 and 3 create a loose, but effective cordon just west of Minsk.
STAKVA sends orders to the units of Northwestern and Western Front to seek link up and attempt to cut off the truck convoys feeding the German spearheads.
By the barest of margins Northwest and Western Fronts are able to effectively link up and create a Soviet supply chain from the Pripyat Marshes to the Baltic ports.
The key to enter effort was found in the southeastern edge of the 2nd Panzer Group's advance. A Soviet rifle division holding the edge of a light wood on the rail line to Gomel south of Minsk thwarted a hasty attack by the 4th Pzr Div. Frustrated the Germans called up the 3rd Pzr Div, responsible for the Group's right flank, to force the Russians back from their position. This aggressiveness opens a 10 mile gap in the area patrolled between the 18th Pzr Div and the forwardmost German Panzers.
The resulting exploitation results in the isolation of almost the entirety of 2nd, 3rd, and 4th Pzr Group.
