documentclass{article}

usepackage{tikz}
usetikzlibrary{tikzmark}

begin{document}

begin{tabular}{lll}
tikzmark{a}aaaaaaaaaaaaaaa&bbbbbbbbbbbbbbb&ccccccccccccccccccctikzmark{c}\
tikzmark{d}dddddddddddddddd&eeeeeeeeeeeeeeee&fffffffffffffffff\
end{tabular}

begin{tikzpicture}[remember picture,overlay]
draw[->] ([ shift={(0,3ex)}]pic cs:a) -- node[above] {increasing complication} ([ shift={(0,3ex)}]pic cs:c);
draw[->] ([ shift={(-1ex,0.7ex)}]pic cs:a) -- node[below,sloped] {increasing complexity} ([ shift={(-1ex,0)}]pic cs:d);
end{tikzpicture}

end{document}