Reshaping a cell array

I have a cell of cells, where each internal cell is a vector of numbers of type double. How can I reshape this in a less cumbersome way, so that I have one cell with its elements consisting of each vector (where the vectors in the first cell-within-a-cell come first, followed by the vectors in the second cell-within-a-cell, etc.)?

Answer 1

[Voss]

C = {{[1 2 3]} {[4 5 6 7]} {[8 9]}}

C = 1×3 cell array
    {1×1 cell}    {1×1 cell}    {1×1 cell}

C = [C{:}]

C = 1×3 cell array
    {[1 2 3]}    {[4 5 6 7]}    {[8 9]}